trochlea

English

Etymology

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

Pronunciation

• (Received Pronunciation) IPA^(key): /ˈtɹɒk.li.ə/
• (General American) IPA^(key): /ˈtɹɑk.li.ə/

Noun

trochlea (plural trochleae or trochleas)

1. (anatomy) A structure resembling or acting like a pulley.
   1. In the elbow joint, the articular surface of the lower extremity of the humerus, grasped by the trochlear notch of the ulna.
   2. A pulley-like cartilage through which the superior oblique muscle of the eyeball passes.

Derived terms

• trochlear
• trochleary
• trochleo-

Translations

structure resembling a pulley

• Chinese:

  Mandarin: 滑車／滑车 (zh) (huáchē)

• Finnish: troklea
• Irish: ulóg f, ^{(please verify)} tróiclé
• Italian: troclea (it) f
• Macedonian: трохле́ја f (trohléja)
• Spanish: tróclea f

References

• “trochlea”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.
• “trochlea”, in Merriam-Webster Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present.

Further reading

• “trochlea”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.
• “trochlea”, in The Century Dictionary […], New York, N.Y.: The Century Co., 1911, →OCLC.
• “trochlea”, in OneLook Dictionary Search.

Anagrams

• chelator, chlorate, trachelo-

Latin

Alternative forms

• troclea

Etymology

Contracted from Ancient Greek τροχῐλείᾱ (trokhileíā, “pulley, block-and-tackle equipment”), from τροχῐ́λος (trokhílos, “sheave in block-and-tackle equipment”) +‎ -είᾱ (-eíā, nominal suffix).

Pronunciation

• (Classical) IPA^(key): /ˈtro.kʰle.a/, [ˈt̪rɔkʰɫ̪eä]
• (modern Italianate Ecclesiastical) IPA^(key): /ˈtro.kle.a/, [ˈt̪rɔːkleä]

Noun

trochlea f (genitive trochleae); first declension

1. mechanical contrivance for raising weights; case or sheaf containing one or more pulleys; pulley block

Inflection

First-declension noun.

Case	Singular	Plural
Nominative	trochlea	trochleae
Genitive	trochleae	trochleārum
Dative	trochleae	trochleīs
Accusative	trochleam	trochleās
Ablative	trochleā	trochleīs
Vocative	trochlea	trochleae

Descendants

• → Alemannic German: Trüegle
• → English: trochlea

References

• “trochlea”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press