turnip-shell
Tur"nip-shell", n. (Zoöl.) Defn: Any one of several large, thick, spiral marine shells belonging to Rapa and allied genera, somewhat turnip-shaped.
Tur"nip-shell", n. (Zoöl.) Defn: Any one of several large, thick, spiral marine shells belonging to Rapa and allied genera, somewhat turnip-shaped.