• WordNet 3.6
    • n eucalyptus a tree of the genus Eucalyptus
    • n eucalyptus wood of any of various eucalyptus trees valued as timber
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Webster's Revised Unabridged Dictionary
    • n Eucalyptus (Bot) A myrtaceous genus of trees, mostly Australian. Many of them grow to an immense height, one or two species exceeding the height even of the California Sequoia.☞ They have rigid, entire leaves with one edge turned toward the zenith. Most of them secrete resinous gums, whence they called gum trees, and their timber is of great value. Eucalyptus Globulus is the blue gum; E. gigantea, the stringy bark: E. amygdalina, the peppermint tree. E. Gunnii, the Tasmanian cider tree, yields a refreshing drink from wounds made in the bark in the spring. Other species yield oils, tars, acids, dyes and tans. It is said that miasmatic valleys in Algeria and Portugal, and a part of the unhealthy Roman Campagna, have been made more salubrious by planting groves of these trees.
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Century Dictionary and Cyclopedia
    • n eucalyptus An important genus of myrtaceous evergreen trees and shrubs, including about 120 species, abundant in all parts of Australia, and occurring rarely in New Guinea, Timor, and the Moluccas. The flowers are usually in axillary umbels, with a firm, deciduous, calyptra-like calyx, no petals, and very numerous stamens. The seeds are very small. The leaves are thick and smooth, mostly similar on both sides, and thrown into a vertical position by a twist of the petiole, glandular - punctate, and with a strong, peculiar odor. The matured wood is always hard, and the timber is often very valuable. Many of the arboreous species are very tall; and some, as E. amygdalina and E. diversicolor, reach a height of over 400 feet, exceeding in this respect all other known trees. Many species exude a gum (a kind of kino), whence the common name of gum-tree. From the extreme hardness or the fibrous character of the bark, some are known as iron-bark or stringy-bark trees, and others are distinguished as mountain-ash, box-, or mahogany-trees, etc. E. sideroploia, which is the principal iron bark-tree, and E. resinifera, are the chief source of Botany Bay kino. The leaves of various species, especially of E. globulus, and the oil extracted from them, are said to have important remedial powers in asthma, bronchitis, and various other diseases. The trees are of very rapid growth, and several species, especially the blue-gum, E. globulus, have been extensively planted in warm countries for their timber. Their culture in malarious districts has also been recommended for the purpose of counteracting miasmatic influences.
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Chambers's Twentieth Century Dictionary
    • n Eucalyptus ū-kal-ip′tus the 'gum-tree,' a large Australian evergreen, beneficial in destroying the miasma of malarious districts
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Webster's Revised Unabridged Dictionary
NL., from Gr. e'y^ well, good + covered. The buds of Eucalyptus have a hemispherical or conical covering, which falls off at anthesis
Chambers's Twentieth Century Dictionary
Coined from Gr. eu, well, kalyptos, covered—kalyptein, to cover.


In literature:

I know the Trappists best, because I drive out to Tre Fontane to buy eucalyptus and flirt with Father John.
"The Eternal City" by Hall Caine
Eucalyptus, or Australian gum-tree, sometimes grows twenty-four feet in three months: bamboo, two feet in twenty-four hours.
"The Handy Cyclopedia of Things Worth Knowing" by Joseph Triemens
Sauntering between plantations of young eucalyptus, they came to the arched stone bridge.
"The Coast of Chance" by Esther Chamberlain
Tasted of sugar a little and eucalyptus oil like they give you when you've got a cold.
"The Magic City" by Edith Nesbit
The Captain mopped his face, and waved an accusing arm towards an inhospitable eucalyptus.
"Half a Hero" by Anthony Hope
One of the curiosities of forest life is the "gum," or eucalyptus, a belt of which almost surrounds the continent.
"Wealth of the World's Waste Places and Oceania" by Jewett Castello Gilson
But his prize stunt was when he broke into the real estate business and laid out Eucalyptus City.
"Odd Numbers" by Sewell Ford
Some woods, such as Western red cedar, redwood, and eucalyptus, become very plastic when hot and moist.
"Seasoning of Wood" by Joseph B. Wagner
The palm takes the place of the eucalyptus to a certain extent.
"Foot-prints of Travel" by Maturin M. Ballou
Eucalyptus, 23, 48, 112, 123, 134.
"Our Italy" by Charles Dudley Warner

In poetry:

The mighty eucalyptus tree
But sheds its bark at winter's call
Its leaves retain their greenery,
And yield a curing oil for all.
"The Trees" by Abner Cosens
You never looked at me at all.
I used to walk down to where the bus stopped
Over the hill where the eucalyptus trees
Moved in the fog, and stared down
At the lights coming on, in the white rooms.
"A Musician's Wife" by Weldon Kees

In news:

Eucalyptus trees are a common feature in the California landscape.
(Eldorado Brazil) to supply a complete fiberline and other major equipment for Eldorado's new 1.5 million tpy bleached eucalyptus pulp mill in Tres Lagoas, Brazil.
It was the 17th Annual Las Primeras Awards Gala at the Old Eucalyptus School House on Evan Hewes Highway.
It will be held tonight at the Old Eucalyptus School House near El Centro on Evan Hewes Highway.
Three Amigos combo with Eucalyptus Spiced Pear and Minero Rita.
Alternatively this week, the fuels crew will be burning brush piles left over from previous eucalyptus thinning at Fort Barry in the Marin Headlands, officials said.
Created by Gale Mayron for the buggy backyards of Brooklyn, the unisex cologne is made with grapefruit, fir needle, patchouli, and lemon-eucalyptus oil, which the CDC recently recommended as a natural alternative to plastic-melting DEET.
Apply insect repellents that contain the active ingredient DEET, picaridin, oil of lemon eucalyptus or other EPA approved repellent to exposed skin or clothing, always following the manufacturer's directions for use.
Use mosquito repellents (DEET, picaridin, oil of lemon eucalyptus, or IR3535) and limit exposure by covering up.
Mother koalas provide their babies with bacteria that allow them to digest eucalyptus leaves.
There are millions of killers loose in California, and eucalyptus trees are their victims.
Accidents at Oxcart Run and Charter Park and Eucalyptus and Gateway East.
Parade watchers should arrive between 6:15 and 6:30 pm if they want to secure a spot along Peyton Drive, north of Eucalyptus Avenue, or Boys.
Pete DeSimone set up the webcam 100 feet up inside a large cavity of an old eucalyptus tree at the Starr Ranch Sanctuary in Orange County.
Since the product smelled similar to eucalyptus, the research group determined that her fungus provided an additional pathway for the synthesis of cineole.

In science:

Note on gynandromorphism in the eucalyptus defoliator thyrinteina arnobia (stoll, 1782) (lepidoptera: Geometridae).
A Developmental Network Theory of Gynandromorphs, Sexual Dimorphism and Species Formation
Another mass grave containing the bodies of around 10 people was discovered recently near Algiers, in the Eucalyptus district.
Centroid-based summarization of multiple documents: sentence extraction, utility-based evaluation, and user studies
Res. 13: 29-44. Just, T.E. (1987) - Management of tropical rainforests in north Queensland. Proceedings of Conference of Institute of Foresters of Australia, Perth 1987. Keenan, R.J. and Candy, S. (1983) - Growth of young Eucalyptus delegatensis in relation to variation in site factors.
Effects of Selection Logging on Rainforest Productivity
McCaw (1997) conducted a large-scale field experiment in Eucalyptus tetragona malleeheath community in south-west Western Australia.
A review of wildland fire spread modelling, 1990-present 2: Empirical and quasi-empirical models
Burrows (1999b, 1994) studied four series of fire behaviour data obtained from field experiments and fuel reduction burns on flat to gently sloping terrain in Jarrah (Eucalyptus marginata ) forest in south-west Western Australia to test Jarrah I and other models for forest fire spread.
A review of wildland fire spread modelling, 1990-present 2: Empirical and quasi-empirical models