| nasal surface of maxilla | The surface of the maxilla that forms part of the lateral nasal wall with a large defect (maxillary hiatus) posteriorly and the lacrimal sulcus in its midportion. Synonym: facies nasalis maxillae. (05 Mar 2000) |
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| nasal surface of palatine bone | The nasal surface of the perpendicular lamina of the palatine bone that forms part of the lateral wall of the nasal cavity, the nasal surface of the horizontal lamina of the palatine bone that forms part of the floor of the nasal cavity. Synonym: facies nasalis ossis palatini. (05 Mar 2000) |
| nasal valve | The variable aperture between the nasal septum and the moveable inferior margin of the lower lateral nasal cartilage. (05 Mar 2000) |
| nasal venous arch | An arch formed at the root of the nose by the two supratrochlear veins connected by a transverse vein. (05 Mar 2000) |
| nasal venules of retina | See: inferior nasal venule of retina, superior nasal venule of retina. (05 Mar 2000) |
| nasalis muscle | <anatomy> Compound muscle consisting of: a transverse part (pars transversa musculi nasalis, musculus compressor naris) arising from the maxilla above the root of the canine tooth on each side and forming an aponeurosis across the bridge of the nose; and an alar part (pars alaris musculi nasalis, musculus dilator naris) arising from the maxilla above the lateral incisor and attaching to the wing of the nose; the alar part dilates the nostril; nerve supply, facial. Synonym: musculus nasalis, nasal muscle. (05 Mar 2000) |
| nasaruplase | <chemical> A native single-chain urokinase-type plasminogen activator; a proenzyme converted only at the thrombus surface Pharmacological action: plasminogen activators (26 Jun 1999) |
| nasba | <technique> The alternative PCR. Invented by the Dutch company Organon, which got involved in a patent lawsuit with Roche, which owns the unique rights for PCR. (09 Oct 1997) |
| nascal | <medicine> A kind of pessary of medicated wool or cotton, formerly used. Origin: F. Nascale. Source: Websters Dictionary (01 Mar 1998) |
| nascent | 1. Commencing, or in process of development; beginning to exist or to grow; coming into being; as, a nascent germ. "Nascent passions and anxieties." (Berkley) 2. <chemistry> Evolving; being evolved or produced. <chemistry> Nascent state, the supposed instantaneous or momentary state of an uncombined atom or radical just separated from one compound acid, and not yet united with another, a hypothetical condition implying peculiarly active chemical properties; as, hydrogen in the nascent state is a strong reducer. Origin: L. Nascens, -entis, p.pr. Nasci to be born. See Nation, and cf. Naissant. Source: Websters Dictionary (01 Mar 1998) |
| naseberry | <botany> A tropical fruit. See Sapodilla. Alternative forms: nisberry. Origin: Sp. Nispero medlar and naseberry tree, fr. L. Mespilus. See Medlar. Source: Websters Dictionary (01 Mar 1998) |
| nasicornous | <zoology> Bearing a horn, or horns, on the nose, as the rhinoceros. Origin: L. Nasus nose + cornu horn: cf. F. Nasicorne. Source: Websters Dictionary (01 Mar 1998) |
| Nasik vibrio | An organism differing from the cholera vibrio, being shorter and stouter and less comma-shaped; its cultures are very toxic to laboratory animals on intravenous injections. (05 Mar 2000) |
| nasioiniac | Relating to the nasion and inion; denoting the distance in a straight line between the frontonasal suture and the external occipital protuberance. (05 Mar 2000) |
| nasion | <anatomy> The middle point of the nasofrontal suture. Origin: Nl, fr. L. Nasus nose. Source: Websters Dictionary (01 Mar 1998) |