Synonyms for Endocrine (same or very similar meaning)
WordNet sense 1 (the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect):
hormone, internal secretion
WordNet sense 2 (any of the glands of the endocrine system that secrete hormones directly into the bloodstream):
endocrine gland, ductless gland
WordNet sense 3 (of or belonging to endocrine glands or their secretions):
endocrinal
From the ODE community, based on WordNet
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