trackwheel

名词 n.
中文释义

英文释义

名词 n.
  1. A small wheel, incorporated into a mouse or smartphone, that controls scrolling.

词形变化

trackwheels plural

词源

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