tea

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Related to herb tea: black tea, tisane

tea,

tree or bush, its leaves, and the beverage made from these leaves. The plant (Camellia sinensis, Thea sinensis, or C. thea) is an evergreen related to the camelliacamellia
[for G. J. Kamel, a Moravian Jesuit missionary], any plant of the genus Camellia in the tea family, evergreen shrubs or small trees native to Asia but now cultivated extensively in warm climates and in greenhouses for their showy white, red, or variegated
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 and indigenous to Assam (India) and probably to parts of China and Japan. In its native state, it grows to a height of about 30 ft (9.1 m), but in cultivation it is pruned to 3–5 ft (91–152 cm). The lanceolate leaves are dark green; the blossom is cream-colored and fragrant. Today tea is consumed by more people and in greater quantity than any beverage except water. The flavor of tea is due to volatile oils, its stimulating properties to caffeinecaffeine
, odorless, slightly bitter alkaloid found in coffee, tea, kola nuts (see cola), ilex plants (the source of the Latin American drink maté), and, in small amounts, in cocoa (see cacao). It can also be prepared synthetically from uric acid.
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, and its astringency to the tannin content (reduced in black teas by the fermentation process). In all parts of the world, tealike beverages (sometimes called tisanes) are made from the leaves or flowers of a wide variety of other plants, often for their medicinal properties.

Cultivation and Preparation

China, where state farms are being supplanted by private ones, remains the largest tea grower of the world; elsewhere, tea is usually grown on plantations. Tea culture requires a protected, well-drained habitat in a warm climate with ample rainfall. The leaves are picked by hand, principally during flushes (periods of active growth), the most desirable being those near the growing tip. They are prepared by withering, rolling, and firing (i.e., heating).

The many kinds of tea are usually named for their color and grade (the best teas using only the two terminal leaves) or for their district of origin, e.g., Darjeeling and Lapsang. Teas are sometimes scented by exposure to fragrant flowers, e.g., jasmine. Brick tea is made from tea dust or inferior tea pressed into blocks. Black teas (e.g., pekoes, souchongs, and congous) differ from green teas (e.g., imperials, gunpowders, and hysons) in having been fermented before firing; oolongs, intermediate in color and flavor, are partially fermented. Green teas are produced chiefly in China and Japan; black teas in China, Indonesia, India, Sri Lanka, and Kenya; and oolongs in Taiwan.

History

Tea was cultivated in China in prehistoric times and was probably first used as a vegetable relish (as it was in American colonies and still is in some parts of Asia) and medicinally. By the 8th cent., cultivation had begun on a commercial scale in China, and shortly thereafter, in Japan. The tea ceremony of Japan was introduced from China in the 15th cent. by Buddhists as a semireligious social custom. Tea was first imported into Europe by the Dutch East India Company in the early 17th cent., and its subsequent popularity played an important role in the opening of Asia to Western commerce.

Until 1834 the British East India Company held a monopoly on imports to Great Britain, trading by direct and indirect routes exclusively with China. Only after this monopoly was broken did other tea-producing areas develop as major exporters—chiefly Kenya, Sri Lanka, India, Indonesia, Japan, and Taiwan. Leading importers of tea include Great Britain, Australia, Canada, Russia, and the Netherlands. The United States also is a large importer, although coffee has long been a more popular beverage.

Classification

Tea is classified in the division MagnoliophytaMagnoliophyta
, division of the plant kingdom consisting of those organisms commonly called the flowering plants, or angiosperms. The angiosperms have leaves, stems, and roots, and vascular, or conducting, tissue (xylem and phloem).
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, class Magnoliopsida, order Theales, family Theaceae.

Bibliography

See J. Shalleck, Tea (1972); J. Schapiro et al., The Book of Coffee and Tea (rev. ed. 1982).

The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved. www.cc.columbia.edu/cu/cup/

tea

[]
(botany)
Thea sinensis. A small tree of the family Theaceae having lanceolate leaves and fragrant white flowers; a caffeine beverage is made from the leaves of the plant.

TEA

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

tea


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tea

1. an evergreen shrub or small tree, Camellia sinensis, of tropical and subtropical Asia, having toothed leathery leaves and white fragrant flowers: family Theaceae
2. 
a. any of various plants that are similar to Camellia sinensis or are used to make a tealike beverage
b. any such beverage
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Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

TEA

(Tiny Encryption Algorithm) A secret-key cryptography method that uses a 128-bit key. It uses the block cipher method, which breaks the text into 64-bit blocks before encrypting them. Written by David Wheeler and Roger Needham of Cambridge Computer Laboratory in the U.K., it is available in 16 round and 32 round versions. The more rounds (iterations), the more secure the results. See encryption algorithm.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
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We prefer alfalfa tea over any other individual wild herb tea.
Tea Brands: Republic of Tea Be Well Red Teas (Get Gorgeous Herb Tea for Clear Skin; Get it Going Herb Tea for Regularity; Get Charged Herb Tea for Energy; Get a Grip Herb Tea for PMS/Menopause; Get Some Zzz's Herb Tea for Rest; Get Lost Herb Tea for Weight Control; Get Clean Herb Tea for Detoxing; Get Soothed Herb Tea for Scratchy Throats; Get Relief Herb Tea for Digestion varieties); J.
The owner of the restaurant recommended that they end the meal with a cup of Bolivian herb tea. All three enjoyed the tea so much that our employee was given a few extra tea bags to take home with him.
Herb teas, called tisanes, may be as near a potion as you'll ever find, offering an incredibly wide variety of flavors and medicinal uses.
To prepare an herb tea, add boiling water to your chosen leaves, Start with 2 teaspoons fresh herb for each 6-ounce cup of water, Steep for 5 to 10 minutes.
After cleaning, I put the birds in a covered plastic barrel filled with ice water and a strong herb tea (a canning pot full of boiled homegrown herbs like chives, basil, oregano, parsley, thyme, etc.
For example, 37 percent of Canadians -- including 44 percent of women -- have tried a medicinal tea (herb tea with specific health benefits).
This ayurvedic jam made of fruit, spices, herbs and honey can be eaten on its own, on toast or in herb tea.
Now, a study has found that the natural chemicals in this herb tea damage the DNA in cancer cells, causing them to self-destruct.
Komen Breast Cancer Foundation and the Herb Tea Collection that benefits The Nature Conservancy.
"Did you notice there were some crushed hogweed stalks on the floor?'' "Mrs Potts was dosing up Dan at every opportunity with herb tea made from foxglove leaves!" Of course she was.