To convert (the skin of an animal) into leather, as by usual process of steeping it in an infusion of oak or some other bark, whereby it is impregnated with tannin, or tannic acid (which exists in several species of bark), and is thus rendered firm, durable, and in some degree impervious to water
To tan animal skins means to make them into leather by treating them with tannin or other chemicals. the process of tanning animal hides. tangent. Black and Tan Tan Cheng Lock Tan Malaka Ibrahim Datuk