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

endocrine system - the system of glands that produce endocrine secretions that help to control bodily metabolic activity

thyroid, thyroid gland - located near the base of the neck

parathyroid, parathyroid gland - any one of four endocrine glands situated above or within the thyroid gland

adrenal, adrenal gland, suprarenal gland - either of a pair of complex endocrine glands situated near the kidney

prostate, prostate gland - a firm partly muscular chestnut sized gland in males at the neck of the urethra; produces a viscid secretion that is the fluid part of semen

thymus gland, thymus - a ductless glandular organ at the base of the neck that produces lymphocytes and aids in producing immunity; atrophies with age

hypophysis, pituitary, pituitary body, pituitary gland - the master gland of the endocrine system; located at the base of the brain

adenohypophysis, anterior pituitary, anterior pituitary gland - the anterior lobe of the pituitary body; primarily glandular in nature

pars anterior, pars distilis - the anterior part of the anterior pituitary

pars intermedia - a thin piece of tissue that has become part of the posterior pituitary

neurohypophysis, pars nervosa, posterior pituitary, posterior pituitary gland - the posterior lobe of the pituitary body; primarily glandular in nature

epiphysis cerebri, pineal body, pineal gland, epiphysis - a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin

islands of Langerhans, isles of Langerhans, islets of Langerhans - cell clusters in the pancreas that form the endocrine part of that organ; secrete insulin and other hormones

adrenal cortex - the cortex of the adrenal gland; secretes corticosterone and sex hormones

adrenal medulla - the medulla of the adrenal gland; secretes epinephrine

corpus luteum - yellow endocrine tissue that forms in a ruptured Graafian follicle following the release of an ovum

gonad, sex gland - a gland in which gametes (sex cells) are produced