Synonyms for Citrus (same or very similar meaning)
WordNet sense 1 (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):
citrus treeWordNet sense 2 (any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions):
citrous fruit, citrus fruitFrom the ODE community, based on WordNetadd/edit