nummulite | (n) large fossil protozoan of the Tertiary period |
Nummulite | n. [ L. nummus a coin + -lite: cf. F. nummulite. ] (Paleon.) A fossil of the genus |
Nummulites | ‖n. [ NL. See Nummulite. ] (Paleon.) A genus of extinct Tertiary Foraminifera, having a thin, flat, round shell, containing a large number of small chambers arranged spirally. [ 1913 Webster ] |
貨幣石 | [かへいせき, kaheiseki] (n) nummulite [Add to Longdo] |