from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various evergreen, usually spiny shrubs or trees of the genus Citrus, such as the grapefruit, lemon, or orange, native to southern and southeast Asia, having leathery, aromatic, unifoliolate compound leaves and widely cultivated for their juicy edible fruits that have a leathery aromatic rind.
- n. The fruit of any of these plants.
- adj. Of or relating to any of the citrus plants or their fruits.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of several shrubs or trees of the family Rutaceae.
- n. The fruit of such plants, generally spherical, oblate, or prolate, consisting of an outer glandular skin called zest, an inner white skin, and generally between 8 and 16 sectors filled with pulp consisting of cells with one end attached to the inner skin. Citrus fruits include orange, grapefruit, lemon, lime, and citron.
- adj. Of, or relating to citrus plants or fruit.
from the GNU version of the Collaborative International Dictionary of English
- n. A genus of trees including the orange, lemon, lime, tangerine, citron, grapefruit, etc., originally natives of southern Asia.
- n. any tree belonging to the genus Citrus, having leathery evergreen leaves and bearing a soft pulpy fruit covered by a thick skin; -- called also citrus tree.
- n. the fruit of a tree belonging to the genus Citrus, having a thick shiny skin and a soft, sweet to tart pulp.
from The Century Dictionary and Cyclopedia
- n. A citron-tree; in general, any tree or fruit of the genus Citrus: as, citrus-culture; the citrus trade.
- n. [capitalized] A genus of small trees, natural order Rutaceæ, with pinnate but apparently simple coriaceous and punctate leaves upon usually winged petioles.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions
- n. any of numerous tropical usually thorny evergreen trees of the genus Citrus having leathery evergreen leaves and widely cultivated for their juicy edible fruits having leathery aromatic rinds
Latin, citron tree.(American Heritage® Dictionary of the English Language, Fourth Edition)