gland vs secretory organ

gland and secretory organ both are nouns.

Word	Noun	Adjective	Verb	Adverb
gland	Yes	No	No	No
secretory organ	Yes	No	No	No

As nouns, gland and secretory organ are synonyms defined as:

gland and secretory organ: any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream

Other synonyms of gland include secreter, secretor.

gland (noun)	secretory organ (noun)
any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream	any of various organs that synthesize substances needed by the body and release it through ducts or directly into the bloodstream