thumbwheel

名词 n.
中文释义

英文释义

名词 n.
  1. A small thumb or finger-operated wheel on a mechanical or electronic device.

词形变化

thumbwheels plural

词源

Etymology tree
English thumb
Proto-Indo-European *kʷel-
Proto-Indo-European *kʷekʷléh₂
Proto-Germanic *hweulō
Old English hwēol
Middle English whel
English wheel
English thumbwheel
From thumb + wheel.
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