ring-shaped
51O-ring — [ō′riŋ΄] n. a ring shaped seal or washer of rubber, plastic, metal, etc., used to prevent leaks in parts connecting pipes, tubes, rocket sections, etc …
52slinger ring — n. a ring shaped tube, fitted around the hub of an airplane propeller, through which alcohol or some other de icing fluid is applied to the blades by centrifugal force …
53life ring — noun a life preserver in the form of a ring of buoyant material • Syn: ↑life buoy, ↑lifesaver, ↑life belt • Hypernyms: ↑life preserver, ↑preserver, ↑flotation device • Hyponyms: ↑ …
54dish ring — noun : a ring shaped stand formerly used under dishes of hot food called also potato ring …
55gas ring — noun Date: 1878 a ring shaped portable gas burner for cooking …
56lip ring, lip plug, and lip plate — ▪ ornament objects, usually ring shaped, inserted into the lips to alter their shape, used as decoration by certain primitive peoples. The lip plug is also known as a labret. In South America at the time of the Spanish conquests, lip… …
57Weiss ring — a ringlike opacity on the posterior vitreous surface, arising as a result of a posterior vitreous detachment. It is seen as a ring shaped floaters …
58engine ring cowl — A ring shaped cowling over the cylinders of a radial engine to give it a streamlined shape and to improve airflow through the engine …
59guard ring — noun a ring shaped electrode used to limit the extent of an electric field, especially in a capacitor …
60Weiss ring — a ringlike opacity on the posterior vitreous surface, arising as a result of a posterior vitreous detachment. It is seen as a ring shaped floater …
