lead-free

形容词 adj.
中文释义

英文释义

形容词 adj.
  1. Containing no lead. not-comparable
  2. Containing no tetraethyl lead; unleaded. not-comparable

词形变化

leadfree alternative

词源

Etymology tree
Proto-Celtic *ɸloudom
Gaulish *loudonbor.?
Proto-West Germanic *laud
Old English lēad
Middle English led
English lead
Proto-Indo-European *preyH-
Proto-Indo-European *-ós
Proto-Indo-European *priHós
Proto-Germanic *frijaz
Proto-West Germanic *frī
Proto-West Germanic *-frī
Old English -frēo
Middle English -fre
English -free
English lead-free
From lead + -free.
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