big adrenocorticotropic hormone (ACTH)
big a·dre·no·cor·ti·co·tro·pic hor·mone (ACTH)
(big ă-drē'nō-kōr-ti-kō-trō'pik hōr'mōn)A form of ACTH, produced by certain tumors, not immunochemically distinguishable from little ACTH, but not exertingany of the biologic effects characteristic ofACTH.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012