grapefruit - large yellow fruit with somewhat acid juicy pulp; usual serving consists of a half

genus Citrus - orange; lemon; lime; etc.

citrus tree, citrus - 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

grapefruit peel - strips of grapefruit peel cooked in sugar syrup and coated with sugar

citrous fruit, citrus, citrus fruit - any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions

Citrus paradisi, grapefruit - citrus tree bearing large round edible fruit having a thick yellow rind and juicy somewhat acid pulp