Definitions
1.Noun(Should we delete this sense?) A connecting band."the retinacula of the ileocaecal and ileocolic valves"
2.NounOne of the annular ligaments which hold the tendons close to the bones at the larger joints, as at the wrist and ankle.
3.NounOne of the retractor muscles of the proboscis of certain worms.
4.NounA loop on the underside of the forewing of some moths.
5.NounA 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.