\Mar*gar"ic\, a. [Cf. F. margarique. See {Margarite}.]
Pertaining to, or resembling, pearl; pearly.
{Margaric acid}.
(a) (Physiol. Chem.) A fatty body, crystallizing in pearly
    scales, and obtained by digesting saponified fats (soaps)
    with an acid. It was formerly supposed to be an
    individual fatty acid, but is now known to be simply an
    intimate mixture of stearic and palmitic acids.
(b) (Chem.) A white, crystalline substance, {C17H34O2} of the
    fatty acid series, intermediate between palmitic and
    stearic acids, and obtained from the wax of certain
    lichens, from cetyl cyanide, and other sources.