beta

(redirected from beta-adrenergic receptors)
Also found in: Thesaurus, Medical, Financial, Encyclopedia.

be·ta

 (bā′tə, bē′-)
n.
1. The second letter of the Greek alphabet. See Table at alphabet.
2. The second item in a series or system of classification.
3. A mathematical measure of the sensitivity of rates of return on a portfolio or a given stock compared with rates of return on the market as a whole. A beta of 1.0 indicates that an asset closely follows the market; a beta greater than 1.0 indicates greater volatility than the market.
4. Astronomy The second brightest star in a constellation.
5. Computers The version of a software or hardware product used in a beta test.
adj.
1. Being the second-ranked individual of one's sex. Used of social animals: the beta male of the chimpanzee colony.
2. Chemistry
a. Being in the second position relative to a designated carbon atom in an organic molecule at which an atom or a group may be substituted.
b. Referring to the second of a group of isomers, or molecules of similar origin or properties, determined arbitrarily by those who discover or classify them. Used in combination: beta-estradiol
3. Computers Of or relating to a beta test or the software or hardware involved in a beta test.

[Greek bēta, of Phoenician origin; see byt in Semitic roots.]

beta

(ˈbiːtə)
n
1. (Letters of the Alphabet (Foreign)) the second letter in the Greek alphabet (Β, β), a consonant, transliterated as b
2. the second highest grade or mark, as in an examination
3. (General Physics) (modifier)
a. involving or relating to electrons: beta emitter.
b. relating to one of two or more allotropes or crystal structures of a solid: beta iron.
c. relating to one of two or more isomeric forms of a chemical compound
[from Greek bēta, from Hebrew; see beth]

Beta

(ˈbiːtə)
n
(Astronomy) (foll by the genitive case of a specified constellation) a star in a constellation, usually the second brightest: Beta Persei.

be•ta

(ˈbeɪ tə; esp. Brit. ˈbi-)

n., pl. -tas,
adj. n.
1. the second letter of the Greek alphabet (Β, ß).
2. (cap.) the second brightest star in a constellation: Beta Tauri.
3. the second of any series.
adj.
4.
a. pertaining to one of the possible positions of an atom or group in a compound.
b. pertaining to one of two or more isomeric compounds.
[< Latin < Greek bêta < Semitic; compare Hebrew bēth]

Be•ta

(ˈbeɪ tə; esp. Brit. ˈbi-) Trademark.
a videocassette tape format.

beta

A test period for new software or hardware.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.beta - the 2nd letter of the Greek alphabet
Greek alphabet - the alphabet used by ancient Greeks
alphabetic character, letter of the alphabet, letter - the conventional characters of the alphabet used to represent speech; "his grandmother taught him his letters"
2.beta - beetsBeta - beets          
caryophylloid dicot genus - genus of relatively early dicotyledonous plants including mostly flowers
beet, Beta vulgaris, common beet - biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop
Adj.1.beta - second in order of importance; "the candidate, considered a beta male, was perceived to be unable to lead his party to victory"
important, of import - of great significance or value; "important people"; "the important questions of the day"
2.beta - preliminary or testing stage of a software or hardware productbeta - preliminary or testing stage of a software or hardware product; "a beta version"; "beta software"
explorative, exploratory - serving in or intended for exploration or discovery; "an exploratory operation"; "exploratory reconnaissance"; "digging an exploratory well in the Gulf of Mexico"; "exploratory talks between diplomats"
Translations
beta
beeta
ベータ
beta
beta
bêta

beta

[ˈbiːtə]
A. Nbeta f
B. CPD beta blocker N (Med) → betabloqueador m

beta

nBeta nt; (Brit Sch) → gut

beta

n beta; — blocker beta-bloqueador m, beta-bloqueante m; — carotene betacaroteno; beta-hemolytic beta-hemolítico
References in periodicals archive ?
(2004) Learning new tricks from old dogs: beta-adrenergic receptors teach new lessons on firing up adipose tissue metabolism.
Carvedilol (CAR) blocks the beta-adrenergic receptors ([beta]AR) inhibiting the phosphorylation of [Ca.sup.2+] handling proteins and decreasing the SR [Ca.sup.2+] load.
Davis, "Beta-adrenergic receptors in the hippocampal and retrohippocampal regions of rats and guinea pigs: autoradiographic and immunohistochemical studies," Synapse, vol.
Cryer, "Increased fat and skeletal muscle beta-adrenergic receptors but unaltered metabolic and hemodynamic sensitivity to epinephrine in vivo in experimental human thyrotoxicosis," The Journal of Clinical Investigation, vol.
Although some studies have investigated the functions of beta-adrenergic receptors in affective disorders, there is little evidence about the polymorphisms of beta-adrenergic receptors in major depressive disorder It is necessary to compare the difference of polymorphisms between patients and controls to investigate the susceptibility to major depressive disorder

Full browser ?