NCIt definition : An unbranched, coiled, tubular gland not associated with the hair follicle that promotes
cooling by evaporation of its secretion. It is innervated by cholinergic nerve fibers.;
Alternative definition : NCI-GLOSS: A type of simple sweat gland that is found in almost all regions of the
skin. These glands produce sweat that reaches the surface of the skin by way of coiled
ducts (tubes). The body is cooled as sweat evaporates from the skin.;