thermotropism vs tropism

thermotropism and tropism both are nouns.

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

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

thermotropism: an orienting response to warmth
tropism: an involuntary orienting response; positive or negative reaction to a stimulus source

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