Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to ductless gland: exocrine gland
See endocrine gland.
(Anatomy) anatomy See endocrine gland
any gland, as the thyroid, adrenal, or pituitary gland, that secretes hormones into the blood or lymph; ductless gland.
Switch to new thesaurus
|Noun||1.||ductless gland - any of the glands of the endocrine system that secrete hormones directly into the bloodstream|
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
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 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; it degenerates after a few days unless pregnancy has begun