• n. [礦物] 石墨；白花丹屬植物

來自拉丁語plumbago,黑鉛，一種鉛礦，來自plumbum,鉛，鉛球，詞源同plumb.

plumbago (n.)

"graphite," 1784, from Latin plumbago "a type of lead ore, black lead," from plumbum "lead" (see plumb (n.)); it renders Greek molybdaina, which was used of yellow lead oxide and also of a type of plant (leadwort). Attested in English in the yellow oxide sense from 1610s; as a type of plant from 1747. Related: Plumbaginous.

1. Any of various plants of the genus Plumbago; leadwort .

任何石墨屬 白花 丹科的植物.

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