KERATIN n.
emical basis of epidermal tissues, such as horn, hair, feathers, and the like. It is an insoluble substance, and, unlike elastin, is not dissolved even by gastric or pancreatic juice. By decomposition with sulphuric acid it yields leucin and tyrosin, as does albumin. Called also epidermose.
LACTIC a.
acid; lactic fermentation, etc. Lactic acid (Physiol. Chem.), a sirupy, colorless fluid, soluble in water, with an intensely sour taste and strong acid reaction. There are at least three isomeric modifications all having the formula C3H6O3. Sarcolactic or paralactic acid occurs chiefly in dead muscle tissue, while ord…
MARINE a.
g ships. Mc Elrath. -- Marine soap, cocoanut oil soap; -- so called because, being quite soluble in salt water, it is much used on shipboard. -- Marine store, a store where old canvas, ropes, etc., are bought and sold; a junk shop. [Eng.]