| Woolner's tip | A point projecting upward and posteriorly from the free outcurved margin of the helix a little posterior to its upper end. Synonym: apex auriculae, apex satyri, Woolner's tip. (05 Mar 2000) |
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| spiral tip catheter | A catheter with a helical filiform tip. (05 Mar 2000) |
| Q tip test | A test for determining the mobility of the urethra. (05 Mar 2000) |
| tip | 1. The point or extremity of anything; a pointed or somewhat sharply rounded end; the end; as, the tip of the finger; the tip of a spear. "To the very tip of the nose." (Shak) 2. An end piece or part; a piece, as a cap, nozzle, ferrule, or point, applied to the extreme end of anything; as, a tip for an umbrella, a shoe, a gas burner, etc. 3. A piece of stiffened lining pasted on the inside of a hat crown. 4. A thin, boarded brush made of camel's hair, used by gilders in lifting gold leaf. 5. Rubbish thrown from a quarry. Origin: Akin to D. & Dan. Tip, LG. & Sw. Tipp, G. Zipfel, and probably to E. Tap a plug, a pipe. Source: Websters Dictionary (01 Mar 1998) |
| tip of auricle | A point projecting upward and posteriorly from the free outcurved margin of the helix a little posterior to its upper end. Synonym: apex auriculae, apex satyri, Woolner's tip. (05 Mar 2000) |
| tip of elbow | <anatomy> The large process at the proximal end of the ulna which projects behind the articulation with the humerus and forms the bony prominence of the elbow. Origin: NL, fr.Gr.; elbow + the head. Source: Websters Dictionary (01 Mar 1998) |
| tip of nose | Anteriormost pointed end of external nose. Synonym: apex nasi. (05 Mar 2000) |
| tip of posterior horn | The pointed extremity of each posterior gray column or cornu of the spinal cord. Synonym: apex cornus posterioris, caput cornus, tip of posterior horn. (05 Mar 2000) |
| tip of tongue | The anterior extreme of the tongue which can be made pointed for sensing or probing and which rests against the lingual aspect of the incisor teeth. Synonym: apex linguae. (05 Mar 2000) |
| tip of tooth root | The tip of a tooth root, the part farthest from the incisal or occlusal side. Synonym: apex radicis dentis, root apex, root tip. (05 Mar 2000) |
| tip-up | <zoology> The spotted sandpiper. Synonym: teeter-tail. See Sandpiper. Source: Websters Dictionary (01 Mar 1998) |
| acrosomal cap | A collapsed membranous vesicle that covers the anterior part of the nucleus of the spermatozoon, derived from the acrosomal granule; the carbohydrate-rich substance of the cap is associated with hydrolytic enzymes that aid in sperm penetration of the zona pellucida of the ovum. Synonym: head cap. (05 Mar 2000) |
| apical cap | <radiology> Local pleural thickening at lung apex, ascribed incorrectly to TB, aetiology: non-specific fibrous scarring (most common), Pancoast tumour (12 Dec 1998) |
| bishop's cap | <botany> A plant of the genus Mitella; miterwort. Source: Websters Dictionary (01 Mar 1998) |
| cap | <abbreviation> Catabolite (gene) activator protein. 1. Any anatomical structure that resembles a cap or cover. 2. A protective covering for an incomplete tooth. 3. Colloquialism for restoration of the coronal part of a natural tooth by means of an artificial crown. 4. The nucleotide structure found at the 5' terminus of many eukaryotic messenger RNAs, consisting of a 7-methylguanosine connected, via its 5'-hydroxyl group, by a triphosphate group to the 5'-hydroxyl group of the first nucleoside encoded by the DNA; usually symbolised as m7G5'ppp5'N, where N is nucleoside number 1 in the transcribed mRNA and is often itself methylated; the cap is added posttranscriptionally. (05 Mar 2000) |