calamondin vs citrus

calamondin and citrus both are nouns.

Word	Noun	Adjective	Verb	Adverb
calamondin	Yes	No	No	No
citrus	Yes	No	No	No

As nouns, citrus is a hypernym of calamondin; that is, citrus is a word with a broader meaning than calamondin:

calamondin: a fruit of the calamondin tree.
citrus: any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions

Other hypernyms of calamondin include citrous fruit, citrus fruit.

calamondin (noun)	citrus (noun)
a fruit of the calamondin tree.	any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions
	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