geotropism vs tropism

geotropism and tropism both are nouns.

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

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

geotropism: an orienting response to gravity
tropism: an involuntary orienting response; positive or negative reaction to a stimulus source

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