What is "styptic colloid"

Colloid \Col"loid\, n.

1. (Physiol. Chem.) A substance (as albumin, gum, gelatin, etc.) which is of a gelatinous rather than a crystalline nature, and which diffuses itself through animal membranes or vegetable parchment more slowly than crystalloids do; -- opposed to crystalloid.

2. (Med.) A gelatinous substance found in colloid degeneration and colloid cancer.

   Styptic colloid (Med.), a preparation of astringent and antiseptic substances with some colloid material, as collodion, for ready use.