Definitions

1. noun

a polyp or a polyp-like growth, especially one that occurs in the intestine, or a type of marine animal belonging to the phylum Echinodermata

“The doctor examined the patient’s polypus to determine the cause of the blockage.”

2. noun

an old term for a sea-slug, particularly one of the species of the genus Polypus, which are often referred to as nudibranchs

“The marine biologist studied the diverse species of polypus found in the ocean.”