what is a adenomatous polyp in colon
â¢ ADENOMATOUS POLYP (noun). The noun ADENOMATOUS POLYP has 1 sense: 1. a polyp that consists of benign neoplastic tissue derived from glandular epithelium. Familiarity information: ADENOMATOUS POLYP used as a noun is very rare. ADENOMATOUS POLYP (noun). The noun ADENOMATOUS POLYP has 1 sense: 1. a polyp that consists of benign neoplastic tissue derived from glandular epithelium. Familiarity information: ADENOMATOUS POLYP used as a noun is very rare.