retinaculum

English

Etymology

From Latin retināculum, from retinēre (“hold back”).

Pronunciation

• IPA^(key): /ˌrɛtɪˈnækjʊləm/

Noun

retinaculum (plural retinacula)

1. (anatomy) A connecting band.

   the retinacula of the ileocaecal and ileocolic valves

2. (anatomy) One of the annular ligaments which hold the tendons close to the bones at the larger joints, as at the wrist and ankle.
3. (zoology) One of the retractor muscles of the proboscis of certain worms.
4. (zoology) A loop on the underside of the forewing of some moths.
5. (botany) A small gland or process to which bodies are attached; as, the glandular retinacula to which the pollinia of orchids are attached, or the hooks which support the seeds in many acanthaceous plants.

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “retinaculum”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)

Latin

Etymology

From retinēo +‎ -culum.

Pronunciation

• (Classical) IPA^(key): /re.tiˈnaː.ku.lum/, [rɛt̪ɪˈnäːkʊɫ̪ʊ̃ˑ]
• (modern Italianate Ecclesiastical) IPA^(key): /re.tiˈna.ku.lum/, [ret̪iˈnäːkulum]

Noun

retināculum n (genitive retināculī); second declension

1. holdfast, tether, halter, hawser, band (also on chariots or ships)

Declension

Second-declension noun (neuter).

Case	Singular	Plural
Nominative	retināculum	retinācula
Genitive	retināculī	retināculōrum
Dative	retināculō	retināculīs
Accusative	retināculum	retinācula
Ablative	retināculō	retināculīs
Vocative	retināculum	retinācula

Derived terms

• retina (possibly)

Descendants

• Old Sardinian: [Term?]
  • Campidanese: ordinagus, odriàngulus
  • Logudorese: redinagios, ordinagos, terinagos
  • Nuorese: retinacros, rodinacos
  • Sassarese: ridinaggi
• Borrowings:
  • → Catalan: retinacle
  • → English: retinaculum
  • → French: rétinacle
  • → Spanish: retináculo

References

• Rubattu, Antoninu (2006) “rèdini”, in Dizionario universale della lingua di Sardegna, 2nd edition, Sassari: Edes

Further reading

• “retinaculum”, in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• retinaculum in Charles du Fresne du Cange’s Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• retinaculum in Gaffiot, Félix (1934) Dictionnaire illustré latin-français, Hachette.