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. noun adrenocorticotrophic 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 […]