mimosa

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. Any of various mostly tropical herbs, shrubs, and trees of the genus Mimosa, having globular heads of small flowers with protruding stamens and usually bipinnate, compound leaves that are often sensitive to touch or light.
2. n. See silk tree.
3. n. A drink consisting of champagne and orange juice.

Century Dictionary and Cyclopedia

1. n. A large genus of leguminous plants of the suborder Mimoseæ and the tribe Eumimoseæ, characterized by a legume with entire or jointed valves which break away from a narrow persistent placenta. The plants are either herbs, erect or climbing shrubs, or sometimes trees, and are often prickly. The leaves are almost always bipinnate, but rarely there are none, or the expanded petiole (phyllodium) takes the place of the leaf; and in many species the leaves are sensitive, closing when touched. The flowers are small and sessile, usually having the stamens very much longer than the corolla; they are arranged in globular heads or in cylindrical spikes. About 280 species have been described, natives of the warmer parts of America and Africa, of tropical Asia, and of the Mascarene Islands. Many are cultivated, the most common being the sensitive-plant or humble-plant of hothouses, M. pudica, which is a branching annual, one or two feet in height, having a great many small leaflets, all highly sensitive when touched. M. myriadenia is a woody climber of tropical America, and is remarkable for the great height which it attains, ascending to the tops of the tallest trees.
2. n. [lowercase] A plant of this genus.
3. n. Same as thiazol yellow.

Wiktionary

1. n. botany A plant belonging to the genus Mimosa usually found in tropical climates, their leaves are usually prickly and sensitive to touch or light, and have small white or pink flowers.
2. n. Silk tree or the pink siris.
3. n. Acacia.
4. n. A cocktail consisting of champagne and orange juice.

GNU Webster's 1913

1. n. (Bot.) A genus of leguminous plants, containing many species, and including the sensitive plants (Mimosa sensitiva, and Mimosa pudica).

WordNet 3.0

1. n. any of various tropical shrubs or trees of the genus Mimosa having usually yellow flowers and compound leaves
2. n. evergreen Australasian tree having white or silvery bark and young leaves and yellow flowers
3. n. a mixed drink containing champagne and orange juice