internal secretion is a noun meaning "the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect". It carries one recorded sense.
the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
Definitions, synonyms and semantic relations for internal secretion come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.