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ENGLISH · A WORD WITH POSSIBILITIES

trochlea.

A structure resembling or acting like a pulley.

8 characters2 syllables approx.English language

Meaning & usage

noun/ˈtɹɒk.li.ə/Received-Pronunciation/ˈtɹɑk.li.ə/General-American
  1. A structure resembling or acting like a pulley. In the elbow joint, the articular surface of the lower extremity of the humerus, grasped by the trochlear notch of the ulna.

  2. A structure resembling or acting like a pulley. A pulley-like cartilage through which the superior oblique muscle of the eyeball passes.

Where this word comes from

Borrowed from Latin trochlea (“case or sheaf containing one or more pulleys, block”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.