出典:Wiktionary
出典:『Wiktionary』 (2026/04/24 22:53 UTC 版)
| Chemical element | ||||||||
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| Mo Atomic number 42 molybdaenum |
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| Previous: ← niobium (Nb) | ||||||||
| Next: technetium (Tc) → |
From New Latin molybdaena (“any of various substances resembling lead, including lead and molybdenum, their sulphides, and graphite”), from Ancient Greek μολύβδαινα (molúbdaina, “a plummet”), from μόλυβδος (mólubdos, “lead; graphite”), from an Anatolian word cognate with Lydian 𐤪𐤠𐤭𐤦𐤥𐤣𐤠 (mariwda, “dark”), from Proto-Indo-European *morkʷ-iyo-, from a root *morkʷ- (“dark”).
Attested since the last quarter of 18th century.