secretion vs biological process

secretion and biological process both are nouns.

Word	Noun	Adjective	Verb	Adverb
secretion	Yes	No	No	No
biological process	Yes	No	No	No

As nouns, biological process is a hypernym of secretion; that is, biological process is a word with a broader meaning than secretion:

Other hypernyms of secretion include organic process.

secretion (noun)	biological process (noun)
a functionally specialized substance (especially one that is not a waste) released from a gland or cell	a process occurring in living organisms
the organic process of synthesizing and releasing some substance