beta-2-symphatomimetikum

  • 1 Beta — Be ta, n. [Gr. bh^ta.] The second letter of the Greek alphabet, B, [beta]. See {B}, and cf. etymology of {Alphabet}. Note: Beta (B, [beta]) is used variously for classifying, as: (a) (Astron.) To designate some bright star, usually the second… …

    The Collaborative International Dictionary of English

  • 2 Beta Cicla — Beet Beet (b[=e]t), n. [AS. bete, from L. beta.] 1. (Bot.) A biennial plant of the genus {Beta}, which produces an edible root the first year and seed the second year. [1913 Webster] 2. The root of plants of the genus {Beta}, different species… …

    The Collaborative International Dictionary of English

  • 3 Beta macrorhiza — Mangel wurzel Man gel wur zel, n. [G., corrupted fr. mangoldwurzel; mangold beet + wurzel root.] (Bot.) A kind of large field beet ({Beta macrorhiza}), used as food for cattle, by some considered a mere variety of the ordinary beet. See {Beet}.… …

    The Collaborative International Dictionary of English

  • 4 Beta rays — Be ta rays (Physics) a form of ionizing radiation emitted by radioactive substances (such as radium), more penetrating than alpha rays, and consisting of negatively charged electrons. The electrons are the same kind of particle as those of… …

    The Collaborative International Dictionary of English

  • 5 beta rays — Electron E*lec tron, n. [NL., fr. Gr. h lektron. See {Electric}.] 1. Amber; also, the alloy of gold and silver, called {electrum}. [archaic] [1913 Webster] 2. (Physics & Chem.) one of the fundamental subatomic particles, having a negative charge… …

    The Collaborative International Dictionary of English

  • 6 Beta vulgaris — Sugar Sug ar, n. [OE. sugre, F. sucre (cf. It. zucchero, Sp. az[ u]car), fr. Ar. sukkar, assukkar, fr. Skr. [,c]arkar[=a] sugar, gravel; cf. Per. shakar. Cf. {Saccharine}, {Sucrose}.] 1. A sweet white (or brownish yellow) crystalline substance,… …

    The Collaborative International Dictionary of English

  • 7 Beta vulgaris — Beet Beet (b[=e]t), n. [AS. bete, from L. beta.] 1. (Bot.) A biennial plant of the genus {Beta}, which produces an edible root the first year and seed the second year. [1913 Webster] 2. The root of plants of the genus {Beta}, different species… …

    The Collaborative International Dictionary of English

  • 8 Beta vulgaris — Beetrave Beet rave , n. [F. betterave; bette beet + rave radish.] The common beet ({Beta vulgaris}). [1913 Webster] …

    The Collaborative International Dictionary of English

  • 9 beta-lactam — Lactam Lac tam, n. [Lactone + amido.] (Chem.) One of a series of anhydrides of an amido type, analogous to the lactones, as oxindol; a cyclic amide. [1913 Webster] {beta lactam} or {[beta] lactam}, (a) a lactam in which the amide bond is… …

    The Collaborative International Dictionary of English

  • 10 beta-lactam antibiotic — Lactam Lac tam, n. [Lactone + amido.] (Chem.) One of a series of anhydrides of an amido type, analogous to the lactones, as oxindol; a cyclic amide. [1913 Webster] {beta lactam} or {[beta] lactam}, (a) a lactam in which the amide bond is… …

    The Collaborative International Dictionary of English

  • 11 salicyl alcohol beta-D-glucopyranoside — Salicin Sal i*cin, n. [L. salix, icis, a willow: cf. F. salicine. See {Sallow} the tree.] (Chem.) A glucoside found in the bark and leaves of several species of willow ({Salix}) and poplar, and extracted as a bitter white crystalline substance.… …

    The Collaborative International Dictionary of English

  • 12 saligenin beta-D-glucopyranoside — Salicin Sal i*cin, n. [L. salix, icis, a willow: cf. F. salicine. See {Sallow} the tree.] (Chem.) A glucoside found in the bark and leaves of several species of willow ({Salix}) and poplar, and extracted as a bitter white crystalline substance.… …

    The Collaborative International Dictionary of English

  • 13 beta-adrenergic — adjective Date: 1959 of, relating to, or being a beta receptor < beta adrenergic blocking action > …

    New Collegiate Dictionary

  • 14 beta-blocker — noun Date: 1968 any of a class of drugs (as propranolol) that decrease the rate and force of heart contractions and lower high blood pressure by blocking the activity of beta receptors • beta blocking adjective …

    New Collegiate Dictionary

  • 15 beta particle — noun Date: 1904 a high speed electron; specifically one emitted by a radioactive nucleus in beta decay …

    New Collegiate Dictionary

  • 16 beta ray — noun Date: 1902 1. beta particle 2. a stream of beta particles called also beta radiation …

    New Collegiate Dictionary

  • 17 beta test — noun Date: 1978 a field test of the beta version of a product (as software) especially by testers outside the company developing it that is conducted prior to commercial release • beta test transitive verb • beta tester …

    New Collegiate Dictionary

  • 18 beta wave — noun Date: 1936 an electrical rhythm of the brain with a frequency of 13 to 30 cycles per second that is associated with normal conscious waking experience called also beta, beta rhythm …

    New Collegiate Dictionary

  • 19 interferon beta — noun Date: 1981 beta interferon …

    New Collegiate Dictionary

  • 20 Phi Beta Kappa — noun Etymology: Phi Beta Kappa (Society), from phi + beta + kappa, initials of the society s Greek motto philosophia biou kybernētēs philosophy the guide of life Date: 1912 a person winning high scholastic distinction in an American college or… …

    New Collegiate Dictionary

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