Phrase 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
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noun
The central gear wheel of an epicyclic gear train; the central gear in planetary gear box, which spins the planet gears
Definition source: English Wiktionary via Wiktextract
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
noun
the central gear in an epicyclic train
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: none provided
Antonyms: none provided
Broader terms: gear, gear wheel, geared wheel, cogwheel
History
By analogy to a sun with planets rotating around it.
Across languages
3 source translations are retained for this English entry.
