a glycoprotein, secreted by the gastric mucosa, that is involved in the intestinal absorption of vitamin B 12 .
(biochem) a glycoprotein, secreted by the stomach, the presence of which is necessary for the absorption of cyanocobalamin (vitamin B12) in the intestine
intrinsic factor n.
A relatively small mucoprotein secreted by the parietal cells of gastric glands and required for adequate absorption of vitamin B12 for production of red blood cells. Also called Castle’s intrinsic factor.
- Intrinsic motivation
noun the undertaking of an activity, as a hobby, without external incentive; also, personal satisfaction derived through self-initiated achievement Examples Intrinsic motivation is the motivation that comes from inside the performer.
- Intrinsic reflex
intrinsic reflex n. A reflex muscular contraction elicited by the application of a stimulus, usually stretching, to the muscle.
operating system, graphics A library package on top of Xlib, extending the basic functions of the X Window System. It provides mechanisms for building widget sets and application environments. (1996-08-26)
- Intrinsic semiconductor
noun 1. an almost pure semiconductor to which no impurities have been added and in which the electron and hole densities are equal at thermal equilibrium Also called i-type semiconductor