American Heritage® Dictionary of the English Language, Fourth Edition
- n. Biology A band or bandlike structure that holds an organ or a part in place.
Century Dictionary and Cyclopedia
- n. In botany: A viscid gland belonging to the stigma of orchids and asclepiads. and holding the pollen-masses fast.
- n. The persistent and indurated hook-like funiculus of the seeds in most Acanthaceæ. A. Gray.
- n. In anatomy, a restraining band; a bridle or frenum: applied to such fibrous structures as those which bind down the tendons of muscles; also to the bridle of the ileocæcal valve.
- n. In entomology, specifically, a small scale or plate which in some insects checks undue protrusion of the sting.
- n. In surgery, an instrument formerly used in operations for hernia, etc.
- n. In entomology: An arrangement of hooks, or of hooks and bristles, whereby the fore and hind wings of insects are interlocked when in flight.
- n. anatomy A connecting band.
- n. anatomy One of the annular ligaments which hold the tendons close to the bones at the larger joints, as at the wrist and ankle.
- n. zoology One of the retractor muscles of the proboscis of certain worms.
- n. zoology A loop on the underside of the forewing of some moths.
- n. 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.
GNU Webster's 1913
- n. A connecting band; a frænum.
- n. One of the annular ligaments which hold the tendons close to the bones at the larger joints, as at the wrist and ankle.
- n. (Zoöl) One of the retractor muscles of the proboscis of certain worms.
- n. (Bot.) A small gland or process to which bodies are attached.
- Latin (Wiktionary)
- Latin retināculum, band, tether : retinēre, to restrain; see retain + -culum, suff. denoting instruments. (American Heritage® Dictionary of the English Language, Fourth Edition)
“Loop: applied to that structure at base of innerside of primaries into which the frenulum of male moths is fitted: see retinaculum.”
“The tendon then extends obliquely forward across the lateral side of the calcaneus, below the trochlear process, and the tendon of the Peronæus brevis, and under cover of the inferior peroneal retinaculum.”
“It ends in a long tendon, which runs behind the lateral malleolus, in a groove common to it and the tendon of the Peronæus brevis, behind which it lies; the groove is converted into a canal by the superior peroneal retinaculum, and the tendons in it are contained in a common mucous sheath.”
“The fibers of the inferior retinaculum are continuous in front with those of the cruciate crural ligament; behind they are attached to the lateral surface of the calcaneus; some of the fibers are fixed to the peroneal trochlea, forming a septum between the tendons of the Peronæi longus and brevis.”
“The fibers of the superior retinaculum (external annular ligament) are attached above to the lateral malleolus and below to the lateral surface of the calcaneus.”
“There is no substitute for a qualified physical therapist to stretch this retinaculum properly.”
“Cutting the retinaculum, the connective tissue holding the kneecap in place to loosen it in the groove, is also only temporary.”
“Then, his patella was realigned by tightening the medial (medial means towards the middle of the body) retinaculum of his left knee.”
“This involved making an incision in the medial retinaculum and sewing it back tighter so that there was more medial pull on the patella.”
“(medial means towards the middle of the body) retinaculum of his left knee.”
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