thorium
名词 n.
发音 thôr'ēəm
英文释义
名词 n.
- A chemical element (symbol Th) with atomic number 90. A weakly radioactive, malleable, moderately hard silvery metal that tarnishes black when exposed to air.
词形变化
词源
Etymology tree
English Thor
Proto-Indo-European *-om
Proto-Italic *-om
Latin -umder.
English -ium
English thorium
From Thor + -ium.
English Thor
Proto-Indo-European *-om
Proto-Italic *-om
Latin -umder.
English -ium
English thorium
From Thor + -ium.
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数据来源: Wiktionary