1. (

• hormone ,
• endocrine ,
• internal_secretion

) the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect ;

2. (

• endocrine_gland ,
• endocrine ,
• ductless_gland

) any of the glands of the endocrine system that secrete hormones directly into the bloodstream ;

1. (

• endocrine ,
• endocrinal

) of or belonging to endocrine glands or their secretions; "endocrine system" ;