n.
Pronunciation: ' si-tr ə s
Function: noun
Inflected Form: plural citrus or cit · rus · es
Usage: often attrib
Etymology: New Latin, genus name, from L
Date: 1825
: 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 \ ' si-tr ə -s ē \ adjective