different between acanthaceous vs retinaculum

English

Etymology

From New Latin Acanthaceae, +? -ous.

Pronunciation

• (US) IPA^(key): /?æk.n???e?.??s/, /?æk.æn??e?.??s/

  Rhymes: -e???s

Adjective

acanthaceous (comparative more acanthaceous, superlative most acanthaceous)

1. (botany): Of, pertaining to, or resembling, a member of the Acanthaceae family.[First attested in the mid 18th century.]
2. Armed with prickles, as a plant.

Related terms

• acantha

Translations

References

English

Etymology

Latin retin?culum, from retin?re (“to retain”).

Pronunciation

• IPA^(key): /?r?t??nækj?l?m/

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.

Latin

Etymology

retin?o +? -culum.

Pronunciation

• (Classical) IPA^(key): /re.ti?na?.ku.lum/, [r?t???nä?k??????]
• (Ecclesiastical) IPA^(key): /re.ti?na.ku.lum/, [r?t?i?n??kulum]

Noun

retin?culum n (genitive retin?cul?); second declension

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

Declension

Second-declension noun (neuter).

Descendants

• Latin: retina (early medieval)
• ? English: retinaculum
• French: rétinacle
• Spanish: retináculo

References

• 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, 1883–1887)
• retinaculum in Gaffiot, Félix (1934) Dictionnaire illustré Latin-Français, Hachette