trophotropism vs tropism

trophotropism and tropism both are nouns.

Word	Noun	Adjective	Verb	Adverb
trophotropism	Yes	No	No	No
tropism	Yes	No	No	No

As nouns, tropism is a hypernym of trophotropism; that is, tropism is a word with a broader meaning than trophotropism:

trophotropism: an orienting response to food
tropism: an involuntary orienting response; positive or negative reaction to a stimulus source

trophotropism (noun)	tropism (noun)
an orienting response to food	an involuntary orienting response; positive or negative reaction to a stimulus source