• a tree of a genus that includes citron, lemon, lime, orange, and grapefruit. Native to Asia, citrus trees are cultivated in warm countries for their fruit

Synonyms: sour, sharp, sharp-tasting, tangy, bitter, acid, acidic, zesty, piquant, pungent, strong, harsh, unsweetened, vinegary, lemony, citrus, burning, acrid, acetic