ˈ ̷ ̷ ˈ ̷ ̷ ̷ ̷ adjective
1. : being a paperback book with a nominal trim size usually of 4 3/16" x 6 3/4" designed to be sold through non-book retail outlets (as supermarkets and drug stores) as well as through bookstores ; also : of, relating to, or publishing mass-market books
2. : appealing or sold to a general audience
the uniformity of their principal, mass-market brands — Michael Jackson