a. [ Poly- + gastric: cf. F. polygastrique. ] 1. (Anat.) Having several bellies; -- applied to muscles which are made up of several bellies separated by short tendons. [ 1913 Webster ]

2. (Zool.) Pertaining to the Polygastrica. [ Obs. ] [ 1913 Webster ]

n. (Zool.) One of the Polygastrica. [ 1913 Webster ]

‖n. pl. [ NL. So called because they were supposed to have several stomachs, or digestive cavities. ] (Zool.) The Infusoria. [ Obs. ] [ 1913 Webster ]