tomato vs solanaceous vegetable

tomato and solanaceous vegetable both are nouns.

Word	Noun	Adjective	Verb	Adverb
tomato	Yes	No	No	No
solanaceous vegetable	Yes	No	No	No

As nouns, solanaceous vegetable is a hypernym of tomato; that is, solanaceous vegetable is a word with a broader meaning than tomato:

tomato: mildly acid red or yellow pulpy fruit eaten as a vegetable
solanaceous vegetable: any of several fruits of plants of the family Solanaceae; especially of the genera Solanum, Capsicum, and Lycopersicon

tomato (noun)	solanaceous vegetable (noun)
mildly acid red or yellow pulpy fruit eaten as a vegetable	any of several fruits of plants of the family Solanaceae; especially of the genera Solanum, Capsicum, and Lycopersicon
native to South America; widely cultivated in many varieties