• WordNet 3.6
    • adj tropic of weather or climate; hot and humid as in the tropics "tropical weather"
    • adj tropic relating to or situated in or characteristic of the tropics (the region on either side of the equator) "tropical islands","tropical fruit"
    • n tropic either of two parallels of latitude about 23.5 degrees to the north and south of the equator representing the points farthest north and south at which the sun can shine directly overhead and constituting the boundaries of the Torrid Zone or tropics
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Ninety-five percent of tropical fish sold in North America originate from Florida
    • a Tropic Of or pertaining to the tropics; tropical.
    • a Tropic (Chem) Of, pertaining to, or designating, an acid obtained from atropine and certain other alkaloids, as a white crystalline substance slightly soluble in water.
    • Tropic (Geog) One of the two parallels of terrestrial latitude corresponding to the celestial tropics, and called by the same names.
    • Tropic (Astron) One of the two small circles of the celestial sphere, situated on each side of the equator, at a distance of 23° 28′, and parallel to it, which the sun just reaches at its greatest declination north or south, and from which it turns again toward the equator, the northern circle being called the Tropic of Cancer, and the southern the Tropic of Capricorn, from the names of the two signs at which they touch the ecliptic.
    • Tropic (Geog) The region lying between these parallels of latitude, or near them on either side.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Tropical rainforests cover about 7% of the Earth and receive over 80 inches of rain every year
    • tropic Pertaining to or of the nature of the growing, bending, or moving of organisms in relation to external agents; exhibiting tropism.
    • tropic Related to tropine.
    • tropic Pertaining to the tropics (the regions so called); tropical.
    • n tropic The turning-point; a solstitial point.
    • n tropic In astronomy, one of two circles on the celestial sphere whose distances from the equator are each equal to the obliquity of the ecliptic, or 23½° nearly. The northern one touches the ecliptic at the sign Cancer, and is thence called the tropic of Cancer, the southern one being for a similar reason called the tropic of Capricorn. The sun's annual path in the heavens is bounded by these two circles, and they are called tropics because when the sun, in his journey northward or southward, reaches either of them, he, as it were, turns back, and travels in an opposite direction in regard to north and south.
    • n tropic In geography, one of two parallels of latitude, each at the same distance from the terrestrial equator as the celestial tropics are from the celestial equator—that is, about 23½°. The one north of the equator is called the tropic of Cancer, and that south of the equator the tropic of Capricorn. Over these circles the sun is vertical when his declination is greatest, and they include the part of the globe called the torrid zone—a zone 47° in width, having the equator for its central line.
    • n tropic plural With the definite article: the regions lying between the tropics of Cancer and Capricorn, or near them on either side.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Heat is better retained in moist air than in dry air,which is why tropical nights are warm and desert nights are cold.
    • n Tropic trop′ik one of the two circles on the celestial sphere, 23° 28′ on each side of the equator, where the sun turns, as it were, after reaching its greatest declination north or south: one of two circles on the terrestrial globe corresponding to these:
    • adjs Tropic pertaining to the tropics: being within or near the tropics
    • n Tropic trop′ik (pl.) the regions lying between the tropics of Cancer and Capricorn
    • ***


  • Christian Nevell Bovee
    “The highest virtue found in the tropics is chastity, and in the colder regions, temperance.”
  • Carl Schurz
    Carl Schurz
    “Consider: if you incorporate those tropical countries with the Republic of the United States, you will have to incorporate their people too.”


Webster's Revised Unabridged Dictionary
F. tropique, L. tropicus, of or belonging to a turn, i. e., of the sun, Gr. of the solstice, (sc. ) the tropic or solstice, fr. to turn. See Trope
Chambers's Twentieth Century Dictionary
Through L. tropicus, from Gr. tropikos, relating to a turning—tropos, a turning.


In literature:

All of these remains are greatly marred by the luxurious growths of tropical vegetation which cover them.
"A Visit to Java" by W. Basil Worsfold
The lower part is in the 26th degree of latitude, so that the heat is tropical.
"The Heart of Nature" by Francis Younghusband
Any one who has not seen it rain in a hot country has an inadequate idea how hard a tropical rain really is.
"A Soldier in the Philippines" by Needom N. Freeman
He had spied those great tropical islands that touched the equator, and he coveted them.
"Tales of the Malayan Coast" by Rounsevelle Wildman
Of the many liberal gifts bestowed upon the tropics, this tree is perhaps the most valuable.
"Foot-prints of Travel" by Maturin M. Ballou
The interval between light and darkness is brief in tropical India.
"India and the Indians" by Edward F. Elwin
This would prove the tiger to be not altogether a tropical animal, as he is generally regarded.
"The Plant Hunters" by Mayne Reid
Soon after we started, all other feelings were lost in intense delight at the luxuriant tropical verdure about us.
"Scenes in the Hawaiian Islands and California" by Mary Evarts Anderson
Let not the Westerner indulge his fears about the discomforts and dangers of travel in this tropical land.
"India, Its Life and Thought" by John P. Jones
One or more species of bot-flies occurring in the tropical parts of America frequently attack man.
"Insects and Diseases" by Rennie W. Doane
Everything indicated a semi-tropical climate.
"Due West" by Maturin Murray Ballou
Almost all kinds of tropical fruits can be raised in the Philippines.
"Birdseye Views of Far Lands" by James T. Nichols
It very probably had its origin in the fertile open lands of the tropics.
"Man And His Ancestor" by Charles Morris
Dressing was rapid, for Chris, like the rest of the sailors in the tropic heat, wore only his breeches.
"Mr. Wicker's Window" by Carley Dawson
These species compose the small but distinct family of tropic birds and are found throughout the tropical and sub-tropical regions of the world.
"Birds Illustrated by Color Photography, Vol. II., No. 5, November 1897" by Various
This was their first experience in a tropical storm and they were frightened.
"The Go Ahead Boys and the Treasure Cave" by Ross Kay
It is valuable to note the large proportion of whites, which is very unusual for a tropical country.
"Porto Rico" by Arthur D. Hall
The tropical night had fallen.
"Doubloons--and the Girl" by John Maxwell Forbes
On the northern tropic, however, the sun is vertical at noon, and the day is more than twelve hours long.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5" by Various
Trips can be made to the surrounding islands, famous for their volcanic mountains and tropical verdure.
"With the World's Great Travellers, Volume 1" by Various

In poetry:

"For in your eyes a light I see
Of tropic shores agleam."
Said Jack: "You need not envy me,
For still you have the Dream.
"The Dream" by Robert W Service
Rich in red honors, that upon him lie
As lightly as the Summer dews
Fall where he won his fame beneath the sky
Of tropic Vera Cruz;
"Ripley" by Henry Timrod
A breath from tropical borders,
Just a ripple, flowed into my room,
And washed my face clean of its sadness,
Blew my heart into bloom.
"At The Window" by Maurice Thompson
Pour in our ears all notes of woe,
That, as these very moments flow,
Rise like a harsh discordant psalm,
While we lie here in tropic calm.
"Storm and Calm" by Henry Timrod
One, whose impetuous youth defied
The storms of Baikal's wintry side,
And mused and dreamed where tropic day
Flamed o'er his lost Virginia's bay.
"The Chapel of the Hermits" by John Greenleaf Whittier
We find within these souls of ours
Some wild germs of a higher birth,
Which in the poet's tropic heart bear flowers
Whose fragrance fills the earth.
"An Incident In A Railroad Car" by James Russell Lowell

In news:

There is no shortage of locations for tropical weddings and honeymoons.
Fairchild Tropical Botanic Garden .
It's an easy way to experience a tropical paradise.
How did you fare during Hurricane ahem Tropical Storm Irene.
Tropicals keep Texas gardeners happy during long, hot months.
Tropical Storm Rafael moves over Caribbean Sea .
CORPUS CHRISTI — When that pipsqueak tropical storm Don was on track for the lower Texas coast a few weeks ago it was hard not to think of Celia .
First, this is a tropical plant and not a true cactus.
NBC NATIONAL NEWS — Isaac continues to push inland, downgraded to a tropical storm.
(WGGB) — Police are searching for two suspects who held up the Tropical Food Market on Wilbraham Road in Springfield Tuesday evening at gunpoint.
Adding Green Space to MoMA With Tropical Terrariums.
Find live chat, videos, photos and stories about Tropical Storm Isaac.
Although tropical storm Lee is no Irene, Gulf Coast residents remain wary of their first major test since Katrina caused such devastation six years ago.
Tropical storm could be godsend .
Deluge of tropical rains created Great Salt Lake , study finds.

In science:

Nugent, P. 2000, in Particle Physics and Cosmology: Second Tropical Workshop, ed. J. F.
Einstein's Biggest Blunder? High-Redshift Supernovae and the Accelerating Universe
In Sect.5, we recall the notion of positive structure on geometric crystals and define ultra-discritization/tropicalization operations.
Geometric Crystals on Schubert Varieties
We introduce a positive structure on geometric crystals and their ultra-discritizations and tropicalizations following to [1, 2.5].
Geometric Crystals on Schubert Varieties
We call the functor U D “ultra-discritization” instead of “tropicalization” unlike in .
Geometric Crystals on Schubert Varieties
The term “tropicalization” here means the inverse tropicalization in .
Geometric Crystals on Schubert Varieties
As an application of the tropicalization/ultra-discritzation given in the previous section, we shall give a new proof of the braid-type isomorphisms of crystals .
Geometric Crystals on Schubert Varieties
Mikhalkin, G., Amoebas of algebraic varieties and tropical geometry, Different faces of geometry, 257–300, Int.
Random partitions and instanton counting
As in the complex situation, all nonzero intersection multiplicity numbers between tropical hypersurfaces defining a nondegenerate tropical complete intersection are equal to 1.
Euler Characteristic of real nondegenerate tropical complete intersections
The intersection multiplicity numbers we use are sums of mixed volumes of polytopes which are dual to cells of the tropical hypersurfaces.
Euler Characteristic of real nondegenerate tropical complete intersections
We show that the Euler characteristic of a real nondegenerate tropical complete intersection depends only on the Newton polytopes of the tropical polynomials which define the intersection.
Euler Characteristic of real nondegenerate tropical complete intersections
Tropical varieties can be defined as the topological closure of the image under the valuation of algebraic varieties over the field of Puiseux Series K.
Euler Characteristic of real nondegenerate tropical complete intersections
For example T is a tropical hypersurface if there exists an algebraic hypersurface ZK in (K∗ )n such that T = V (Z ) where V is the coordinatewise valuation (we rather take minus the valuation).
Euler Characteristic of real nondegenerate tropical complete intersections
By a theorem due to Kapranov (see Theorem 3.2) tropical hypersurfaces are nonlinearity loci of piecewise-linear convex functions on Rn of the form f trop (x) = maxω∈Ω (< x, ω > −aω ) where Ω is a finite subset of Zn and aω a real number.
Euler Characteristic of real nondegenerate tropical complete intersections
One of the important application of tropical geometry is due to Mikhalkin who gave a combinatorial way to count the number of curves of given degree and genus passing through the appropriate number of given generic points.
Euler Characteristic of real nondegenerate tropical complete intersections
The algorithm exposed in has a real counterpart for which it is necessary to introduce the real part of complexified tropical curves.
Euler Characteristic of real nondegenerate tropical complete intersections