delta

Definitions

  • WordNet 3.6
    • n delta the 4th letter of the Greek alphabet
    • n delta a low triangular area of alluvial deposits where a river divides before entering a larger body of water "the Mississippi River delta","the Nile delta"
    • n delta an object shaped like an equilateral triangle
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Webster's Revised Unabridged Dictionary
  • Interesting fact: The main active chemical in marijuana is THC (delta-9-tetrahydrocannabinol). The membranes of certain nerve cells in the brain contain protein receptors that bind to THC. Once securely in place, THC kicks off a series of cellular reactions that ultimately lead to the high that users experience when they smoke marijuana
    • Delta A tract of land shaped like the letter delta (Δ), especially when the land is alluvial and inclosed between two or more mouths of a river; as, the delta of the Ganges, of the Nile, or of the Mississippi.
    • Delta (Elec) The closed figure produced by connecting three coils or circuits successively, end for end, esp. in a three-phase system; -- often used attributively, as delta winding, delta connection (which see), etc.
    • Delta The fourth letter of the Greek alphabet (Δ δ), corresponding to D.
    • ***
Century Dictionary and Cyclopedia
    • n delta The name of the Greek letter Δ, δ, answering to the Latin and English D. See D.
    • n delta A triangular island or alluvial tract included between the diverging branches of the mouth of a great river: as, the delta of the Nile, of the Ganges, of the Mississippi, etc.
    • n delta In anatomy, a triangular space or surface.
    • ***
Chambers's Twentieth Century Dictionary
    • n Delta del′ta the fourth letter of the Greek alphabet, the capital form of which is Δ: a tract of land of like shape formed at the mouth of a river
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Gr. de`lta, the name of the fourth letter of the Greek alphabet (the capital form of which is Δ, Eng. D), from the Phœnician name of the corresponding letter. The Greeks called the alluvial deposit at the mouth of the Nile, from its shape, the Delta, of the Nile
Chambers's Twentieth Century Dictionary
Gr.,—Heb. daleth, a tent-door.

Usage

In literature:

In the delta of the Isonzo, near Monfalcone, a portion was called "Insula Pansiana" even in the Middle Ages.
"The Shores of the Adriatic" by F. Hamilton Jackson
The escape vehicle was a small delta shaped craft.
"What Need of Man?" by Harold Calin
On December 9, in the midst of a storm, the ships anchored off the delta of the Mississippi.
"Hero Stories from American History" by Albert F. Blaisdell
At its entrance into the former lake the Cherchen-darya forms a broad delta.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1" by Various
This province forms part of the great delta plain of China proper, 20,000 sq.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 2" by Various
As we approached Cairo, the great valley of the delta narrowed, and mountain boundaries loomed up in the distance.
"A Trip to the Orient" by Robert Urie Jacob
And on the far horizon towered the mighty structure of the delta-level converter, the reason for the existence of Base Q.
"Generals Help Themselves" by M. C. Pease
There is a fine delta in the gulf.
"Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 6" by Various
At nineteen his apprenticeship was finished and he went to South Africa as foreman-engineer on some work being done at the delta of the Niger.
"The Scrap Book, Volume 1, No. 5" by Various
Thus the great delta is formed.
"Earth and Sky Every Child Should Know" by Julia Ellen Rogers
At its delta it divides into three major and several minor branches.
"Area Handbook for Romania" by Eugene K. Keefe, Donald W. Bernier, Lyle E. Brenneman, William Giloane, James M. Moore, and Neda A. Walpole
From the gulf to the beginning of the Delta the coast is rock-bound, but slightly indented, and possesses no good harbourage.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 1" by Various
Mississippi, delta of the, 333.
"The Origin of the World According to Revelation and Science" by John William Dawson
The Mackenzie forms a large but little-known delta in lat.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 2" by Various
It inspired, we know, such men as Burns, Byron, Shelley, and Delta.
"Young's Night Thoughts" by Edward Young
DELTAS OF INLAND SEAS.
"Principles of Geology" by Charles Lyell
On the seaward face of its delta are the open roadsteads of Negapatam and French Karikal.
"Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 5" by Various
When we think of it in this light the great delta of the Mississippi is easily accounted for.
"Nature's Miracles, Volume 1" by Elisha Gray
The previous night he had ordered the Indian pilot to sketch a chart of the coastline on both sides of the Tapti River delta.
"The Moghul" by Thomas Hoover
Two eagles fed on a dead caribou on a delta on the east side of Lake Peters.
"Birds Found on the Arctic Slope of Northern Alaska" by James W. Bee
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In poetry:

By the road of ways
In the three-part shadow of troubled sleep
I come to you the double the multiple
as like you as the era of deltas.
"The Season Of Loves" by Paul Eluard
On Egypt sleeping under sky of brass
The twain gazed wistfully from terrace high,
And watched the Flood, through Delta rolling high,
Toward Sais or Bubastis slowly pass.
"Antony and Cleopatra" by Jose Maria de Heredia y Giraud
With these outflowing, river-like, with deltas
that spread like arms to reach the open sea,
with the recurrent tides that never cease
will I acknowledge you, will I proclaim you
as no one ever has before.
"Dedication" by Rainer Maria Rilke
The greens of the Ganges delta foliate.
Of heartless youth made late aware he pled:
Brownies, please come.
To Henry in his sparest times sometimes
the little people spread, & did friendly things;
then he was glad.
"Dream Song 27: "The greens of the Ganges delta foliate."" by John Berryman

In news:

Master of ceremony Lee Allan Smith welcomes guests to the Phi Gamma Delta House.
Delta Kappa Gamma is a teachers' society that places emphasis on education.
The Beta Kappa Chapter of Delta Kappa Gamma is comprised of teachers from Lincoln and Marshall counties of southern Tennessee.
Members of the Beta Kappa Chapter of Delta Kappa Gamma attended the Legislative Symposium in Nashville in February.
Alpha Rho Chapter of the Delta Kappa Gamma Society International announces grant recipents.
PearlBrite, Leonard Genovese , teeth whitening, teeth whitening kit, Leonard Tucker, Delta Entertainment Group, Genovese Drug Stores.
Geologist finds man's body near Delta.
Greater and lesser sandhill cranes gather on Staten Island in the Delta.
On airlines, space telescopes, American politics, Mexico's army, the Mekong delta, the Sex Pistols, goatee beards.
As a former student of KIPP: Delta Public Schools, which recruits Teach for America teachers nationwide, I can say without a doubt that the program is beneficial to students.
Nov 14, 2005 David Bennett Delta Farm Press.
It's because our dying deltas present such rapid changes between beauty and horror, joy and sadness that whiplash is a definite concern.
After years of hosting ads for Delta, the wall has been AT&T's turf of late.
Sallie Ann Neblett Gresham , the former senior editor of the Delta Democrat Times in Greenville, died Tuesday, the newspaper reporter.
Northeast Mississippi Community College defeated Mississippi Delta Community College in its home opener at Tiger Stadium in front of a packed house on Thursday night the old fashion way.
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In science:

At the leading edge of each colliding type–N gravitational wave, the curvature tensor exhibits delta and jump discontinuities.
A class of colliding waves in metric-affine gravity, nonmetricity and torsion shock waves
The nonmetricity and torsion present delta singularities and jump discontinuities.
A class of colliding waves in metric-affine gravity, nonmetricity and torsion shock waves
There are no problems on the right–hand side because the delta type singularities of the curvature are multiplied by the smooth distributions p1 − Θ(u)u2 and p1 − Θ(v)v2 , respectively.
A class of colliding waves in metric-affine gravity, nonmetricity and torsion shock waves
We give qualitative arguments for the presence, location and size of delta peaks in the spectrum.
Random incidence matrices: moments of the spectral density
After displaying numerical observations, we prove that the density of states has an infinity of delta peaks for any α.
Random incidence matrices: moments of the spectral density
When α is small, we see a forest of delta peaks.
Random incidence matrices: moments of the spectral density
We plot it for α = 1 on Fig 4: each vertical step corresponds to a delta peak, with a weight equal to the height of the step.
Random incidence matrices: moments of the spectral density
When α increases, the heights of delta peaks decreases, but their positions along the x-axis do not move (before the √α rescaling).
Random incidence matrices: moments of the spectral density
With this kind of histogram, when a delta peak becomes too small, it seems to disappear because it is drowned in the rest of the distribution.
Random incidence matrices: moments of the spectral density
But we will show that the spectrum has an infinity of delta peaks for any α.
Random incidence matrices: moments of the spectral density
In particular, we have checked that the height of the delta peak at x = 0 is regular around α = 1.
Random incidence matrices: moments of the spectral density
This transition seems to be related to a transition at α = e, where the second derivative of the height of delta peak at x = 0 as function of α is discontinuous [Bauer00a].
Random incidence matrices: moments of the spectral density
In this section, we explain that, for any value of α, the distribution has an infinite number of delta peaks.
Random incidence matrices: moments of the spectral density
More precisely, we show that they are delta peaks at all eigenvalues of finite trees.
Random incidence matrices: moments of the spectral density
The delta peaks at tree eigenvalues have, at least, two origins [Kirkpatrick72]: the small connected components, which are trees, and small trees grafted on the giant component (percolation cluster).
Random incidence matrices: moments of the spectral density
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