| Bernheim, P | <person> Early 20th century French physician. See: Bernheim's syndrome. (05 Mar 2000) |
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| bernicle | A bernicle goose. <zoology> Alternative forms: barnacle] Bernicle goose, a goose (Branta leucopsis), of Arctic Europe and America. It was formerly believed that it hatched from the cirripeds of the sea (Lepas), which were, therefore, called barnacles, goose barnacles, or Anatifers. The name is also applied to other related species. See Anatifa and Cirripedia. Origin: OE. Bernak, bernacle; cf. OF. Bernac; prob. Fr. LL. Bernacula for hibernicula, bernicula, fr. Hibernia; the birds coming from Hibernia or Ireland. Cf. 1st Barnacle. Source: Websters Dictionary (01 Mar 1998) |
| Bernoulli distribution | <statistics> The probability distribution associated with two mutually exclusive and exhaustive outcomes, e.g., death or survival. (14 Aug 2000) |
| Bernoulli effect | <physics> The decrease in fluid pressure that occurs in converting potential to kinetic energy when motion of the fluid is accelerated, in accordance with Bernoulli's law. Applied in water aspirators, atomisers, and humidifiers in which a gas is accelerated across the end of a narrow, fluid-filled orifice. (05 Mar 2000) |
| Bernoulli trial | A single random event for which there are two and only two possible outcomes that are mutually exclusive and have a priori fixed (and complementary) probabilities of resulting. The trial is the realization of this process. Conventionally one outcome is termed a success and is assigned the score 1, the other is a failure and has the score zero. Thus the outcome might be 0 (no heads, one tail) or 1 (1 head, no tails). (05 Mar 2000) |
| Bernoulli's law | <physics> When friction is negligible, the velocity of flow of a gas or fluid through a tube is inversely related to its pressure against the side of the tube; i.e., velocity is greatest and pressure lowest at a point of constriction. Synonym: Bernoulli's principle, Bernoulli's theorem. (05 Mar 2000) |
| Bernoulli's principle | <physics> When friction is negligible, the velocity of flow of a gas or fluid through a tube is inversely related to its pressure against the side of the tube; i.e., velocity is greatest and pressure lowest at a point of constriction. Synonym: Bernoulli's principle, Bernoulli's theorem. (05 Mar 2000) |
| Bernoulli's theorem | <physics> When friction is negligible, the velocity of flow of a gas or fluid through a tube is inversely related to its pressure against the side of the tube; i.e., velocity is greatest and pressure lowest at a point of constriction. Synonym: Bernoulli's principle, Bernoulli's theorem. (05 Mar 2000) |
| Bernoulli, Daniel | <person> Swiss mathematician, 1700-1782. See: Bernoulli effect, Bernoulli's law, Bernoulli's principle, Bernoulli's theorem. (05 Mar 2000) |
| Bernstein mode | <radiobiology> Type of mode which propagates perpendicular to the equilibrium magnetic field in a hot plasma. The waves have their electric field nearly parallel to the wave propagation vector (nearly longitudinal). The modes propagate in frequency ranges lying between integer harmonics of the electron cyclotron frequency. Named after Ira Bernstein. (09 Oct 1997) |
| Bernstein test | <investigation> A test used to diagnosis gastrooesophageal reflux disease. This test is performed in a doctor's office or lab and requires that the patient swallow 3 tiny tubes into the stomach. A mixture of hydrochloric acid (like stomach acid) and saline are alternatively injected into the tubes. The patient then reports any symptoms they may have. Some patients may vomit. (27 Sep 1997) |
| Bernstein, Lionel | <person> U.S. Internist, *1923. See: Bernstein test. (05 Mar 2000) |
| beroe | <zoology> A small, oval, transparent jellyfish, belonging to the Ctenophora. Origin: L. Beroe, one of the Oceanidae Gr., cf. F. Beroe. Source: Websters Dictionary (01 Mar 1998) |
| berretta | A square cap worn by ecclesiastics of the Roman Catholic Church. A cardinal's berretta is scarlet; that worn by other clerics is black, except that a bishop's is lined with green. [Also spelt beretta, biretta, etc. Origin: It, fr. LL. Birrettum, berretum, a cap, dim. Of L. Birrus, birrum, a cloak to keep off rain, cf. Gr. Tawny, red: cf. Sp. Birreta, Pg. Barrete, and E. Barret. Source: Websters Dictionary (01 Mar 1998) |
| berry | A fleshy or pulpy indehiscent fruit with the seed embedded in the fleshy tissue of the pericarp. Compare: drupe, pyrene. (09 Oct 1997) |