貨か幣へい石せきかへいせきMeanings1nounnummuliteA fossil foraminiferan with a coin-like shape, from the genus Nummulites. Used in geology and paleontology.エジプトのピラミッドの石せき材ざいには貨か幣へい石せきの化か石せきが含ふくまれている。The stone of the Egyptian pyramids contains nummulite fossils.