Lamb'skin` noun 1. The skin of a lamb; especially, a skin dressed with the wool on, and used as a mat. Also used adjectively. 2. A kind of woolen. Found on http://www.encyclo.co.uk/webster/L/8
The skin or hide of a young sheep. Also known as “napa” leather, lambskin has fewer blemishes and a more uniform grain than other leathers such as buffalo and cowhide, which make it extra soft and attractive for use in clothing. Found on https://sewguide.com/sewing-terms-glossary/