1. (

• citrus ,
• citrus_fruit ,
• citrous_fruit

) any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions ;

2. (

• citrus ,
• citrus_tree

) 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 ;