Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
noun
A gear wheel.
Definition source: English Wiktionary via Wiktextract
Synonyms: gear wheel, gearwheel, cog, gear
Antonyms: none provided
Broader terms: cog, wheel, gear
noun
Something behaving in a jerky manner similar to a cogwheel, e.g. cogwheel respiration as a side effect of hyperbaric medicine.
Definition source: English Wiktionary via Wiktextract
Usage: attributive
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: gear, gear wheel, geared wheel
Antonyms: none provided
Broader terms: wheel
Narrower terms: bevel gear, pinion and crown wheel, pinion and ring gear, escape wheel, pinion, planetary gear, epicyclic gear, planet wheel, planet gear, rack and pinion, spur gear, spur wheel, sun gear, worm gear, worm wheel
History
Etymology tree Proto-Indo-European *gēw- Proto-Indo-European *gugāder. Proto-Germanic *kuggōder. Old Norse *koggrbor. Middle English cogge English cog Proto-Indo-European *kwel- Proto-Indo-European *kwekwléh2 Proto-Germanic *hweulō Old English hwēol Middle English whel English wheel English cogwheel From cog + wheel.
