Dictionary

citrus

noun, cit·rus often attributive \ˈsi-trəs\

: a juicy fruit (such as an orange, grapefruit, or lemon) that has a thick skin and that comes from a tree or shrub that grows in warm areas

plural citrus or cit·rus·es

Full Definition of CITRUS

:  any of a group of often thorny trees and shrubs (Citrus and related genera) of the rue family grown in warm regions for their edible fruit (as the orange or lemon) with firm usually thick rind and pulpy flesh; also :  the fruit
cit·rusy \ˈsi-trə-sē\ adjective

Origin of CITRUS

New Latin, genus name, from Latin
First Known Use: 1825

citrus

noun , cit·rus often attrib \ˈsi-trəs\   (Medical Dictionary)

Medical Definition of CITRUS

1
capitalized :  a genus of often thorny trees and shrubs of the rue family (Rutaceae) grown in warm regions for their edible fruit (as the orange, lemon, lime, or mandarin) with firm usually thick rind and pulpy flesh
2
plural citruses or citrus :  any plant or fruit of the genus Citrus or a related genus
May 30, 2015
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