| boiling point | This is the temperature at which the vapor pressure of a given liquid reaches atmospheric pressure (and thus starts to boil). (09 Oct 1997) |
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| boiling point elevation | This is the phenomenon of increasing the temperature at which a liquid boils by dissolving another substance in the liquid (for example: you can raise the temperature at which water boils by adding salt to it). (09 Oct 1997) |
| boiling | Heated to the point of bubbling; heaving with bubbles; in tumultuous agitation, as boiling liquid; surging; seething; swelling with heat, ardor, or passion. Boiling point, the temperature at which a fluid is converted into vapor, with the phenomena of ebullition. This is different for different liquids, and for the same liquid under different pressures. For water, at the level of the sea, barometer 30 in, it is 212 deg Fahrenheit; for alcohol.96 deg; for ether.8 deg; for mercury, about 675 deg . The boiling point of water is lowered one degree Fahrenheit for about 550 feet of ascent above the level of the sea. Boiling spring, a spring which gives out very hot water, or water and steam, often ejecting it with much force; a geyser. To be at the boiling point, to be very angry. To keep the pot boiling, to keep going on actively, as in certain games. Source: Websters Dictionary (01 Mar 1998) |
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| boiling water reactor | <radiobiology> Class of fission reactor where water is used as a coolant and allowed to boil into steam. (09 Oct 1997) |
| 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) |
| Cannon's point | The location in the mid-transverse colon at which innervation by superior and inferior mesenteric plexuses overlap at the junction of the primitive midgut and hindgut, frequently resulting in narrowing evident on barium enema. See: Cannon's ring. Synonym: Cannon's ring. (05 Mar 2000) |
| painful point | See: Valleix's points. (05 Mar 2000) |
| malar point | Apex of the tuberosity of the zygomatic (malar) bone. (05 Mar 2000) |
| maximum occipital point | The point on the squama of the occipital bone farthest from the glabella. (05 Mar 2000) |
| Mayo-Robson's point | A point just above and to the right of the umbilicus, where tenderness on pressure exists in disease of the pancreas. (05 Mar 2000) |
| mcburney's point | In acute appendicitis, extreme sensitivity over the appendix in a location that is approximately two inches to the left of the right anterior superior iliac spine. (27 Sep 1997) |
| cell cycle restriction point | <cell biology, molecular biology> A point, late in G1, after which the cell must, normally, proceed through to division at its standard rate. (26 Mar 1998) |