Source : WordNet®

endocrine
     adj : of or belonging to endocrine glands or their secretions;
           "endocrine system" [syn: {endocrinal}] [ant: {exocrine}]

endocrine
     n 1: the secretion of an endocrine gland that is transmitted by
          the blood to the tissue on which it has a specific
          effect [syn: {hormone}, {internal secretion}]
     2: any of the glands of the endocrine system that secrete
        hormones directly into the bloodstream [syn: {endocrine
        gland}, {ductless gland}]