| flash point | The lowest temperature at which vapors of a liquid may be ignited by a flame. (05 Mar 2000) |
|---|
| arc-flash conjunctivitis | Acute keratoconjunctivitis resulting from exposure to intense ultraviolet irradiation. Synonym: actinic conjunctivitis, arc-flash conjunctivitis, flash keratoconjunctivitis, ophthalmia nivalis, snow conjunctivitis, welder's conjunctivitis. (05 Mar 2000) |
|---|---|
| hot flash | Colloquialism for one of the vasomotor symptoms of the climacteric that may involve the whole body as a flash of heat; also used interchangeably with hot flush. (05 Mar 2000) |
| flash | 1. A pool. 2. <engineering> A reservoir and sluiceway beside a navigable stream, just above a shoal, so that the stream may pour in water as boats pass, and thus bear them over the shoal. <mechanics> Flash wheel, a paddle wheel made to revolve in a breast or curved water way, by which water is lifted from the lower to the higher level. Origin: OE. Flasche, flaske; cf. OF. Flache, F. Flaque. Source: Websters Dictionary (01 Mar 1998) |
| flash blindness | A temporary loss of vision produced when retinal light-sensitive pigments are bleached by light more intense than that to which the retina is physiologically adapted at that moment. (05 Mar 2000) |
| flash burn | A burn due to very brief exposure to intense radiant heat; the typical burn produced by atomic explosion. (05 Mar 2000) |
| flash dispersal | The property of rapid disintegration of a tablet when placed on the tongue. (05 Mar 2000) |
| flash evaporator | <apparatus> An apparatus used to concentrate a solute by evaporating its solvent. The device is fairly simple: a heated, rotating glass sphere with an exhaust tube to let the solvent fumes to escape. (09 Oct 1997) |
| flash keratoconjunctivitis | Acute keratoconjunctivitis resulting from exposure to intense ultraviolet irradiation. Synonym: actinic conjunctivitis, arc-flash conjunctivitis, flash keratoconjunctivitis, ophthalmia nivalis, snow conjunctivitis, welder's conjunctivitis. (05 Mar 2000) |
| flash method | Sterilization of milk by raising it rapidly to a temperature of 178캟, holding it there for a short time, and reducing it rapidly to 40캟. (05 Mar 2000) |
| alveolar point | The most anterior point on the maxillary alveolar process in the midline. Synonym: alveolar point, prostheon. Origin: G. Ntr. Of prosthios, foremost (05 Mar 2000) |
| anterior focal point | The point where parallel rays from the retina are focused. (05 Mar 2000) |
| apophysial point | The centre of the root of the anterior nasal spine. Synonym: apophysary point, apophysial point, spinal point. (05 Mar 2000) |
| arrow point tracing | A tracing of mandibular movements made by means of a device attached to the opposing arches; its shape resembles that of an arrowhead or a Gothic arch, and when the instrument's marking point is at the apex of the arch, the jaws are considered to be in centric relation. Synonym: arrow point tracing, Gothic arch tracing, Gothic arch, stylus tracing. (05 Mar 2000) |
| auricular point | A craniometric point at the centre of the opening of the external acoustic meatus; or, in certain cases, the middle of the upper edge of this opening. Synonym: auricular point. Origin: L. Auricularis, pertaining to the ear (05 Mar 2000) |
| axial point | One of two point's in a compound optical system so related that a ray directed toward the first point will appear to have passed through the second point parallel to its original direction. Synonym: axial point. (05 Mar 2000) |