biochemistry. a polypeptide hormone, produced by the anterior lobe of the pituitary gland, that stimulates the cortex of adrenal glands.
pharmacology. this substance, extracted from the pituitary glands of hogs and other species, in the form of its white, water-soluble powder, used for the diagnosis of diseases that impair the adrenal glands.
adrenocorticotrophic hormone; a polypeptide hormone, secreted by the anterior lobe of the pituitary gland, that stimulates growth of the adrenal gland and the synthesis and secretion of corticosteroids. it is used in treating rheumatoid arthritis, allergic and skin diseases, and many other disorders also called corticotrophin
adrenocorticotropic hormone; a hormone that is produced by the anterior lobe of the pituitary gland and that stimulates the secretion of cortisone, aldosterone, and other hormones by the adrenal cortex. also called adrenocorticotropin, adrenotropin, corticotropin.
abbreviation of adrenocorticotropic hormone
- Acth-producing adenoma
acth-producing adenoma acth-producing adenoma n. a pituitary tumor causing cushing’s syndrome, composed of basophilic, densely granulated corticotrophs. also called basophil adenoma.
a promontory in nw ancient greece: antony and cleopatra were defeated by octavian and agrippa in a naval battle near here in 31 b.c. historical examples the galleys “rammed” each other at actium; but there was no dahlgren or sawyer to thunder from their decks or turrets. the atlantic monthly, volume 15, no. 91, may, […]
- Actin filament
actin filament actin filament n. one of the contractile elements in skeletal, cardiac, and smooth muscle fibers.
a globulin that is present in muscle plasma and that in connection with myosin plays an important role in muscle contraction. variant of before a vowel: actinism. historical examples and if mr. robert hadn’t been actin’ so much like a poor prune he’d have quit that line right there. torchy, private sec. sewell ford that’s […]
having tentacles or rays. pertaining to the oral area from which the arms or tentacles radiate. historical examples the plane of the actinal surface at first meets that of the abactinal at an acute or nearly right angle. the works of francis maitland balfour, volume ii (of 4) francis maitland balfour the larval mouth is […]