B type or Type B may refer to:

Astronomy

B-type asteroid B-type asteroids are a relatively uncommon type of carbonaceous asteroid, falling into the wider C-group; the 'B' indicates these objects are spectrally blue. In the asteroid population, B-class objects can be found in the outer asteroid belt, an ...

, a type of relatively uncommon type of carbonaceous asteroid *

B-type giant In astronomy, a blue giant is a hot star with a luminosity class of III (giant) or II (bright giant). In the standard Hertzsprung–Russell diagram, these stars lie above and to the right of the main sequence. The term applies to a variety of s ...

, a type of blue giant star *

B-type star A B-type main-sequence star (B V) is a main-sequence (hydrogen-burning) star of spectral type B and luminosity class V. These stars have from 2 to 16 times the mass of the Sun and surface temperatures between 10,000 and 30,000 K. B-type stars ...

, a type of star

Biology

B type blood The ABO blood group system is used to denote the presence of one, both, or neither of the A and B antigens on erythrocytes. For human blood transfusions, it is the most important of the 43 different blood type (or group) classification system ...

, a type in the ABO blood group system *

B type inclusion B-type inclusions, formerly known as Guarnieri bodies are cellular features found upon microscopic inspection of epithelial cells of individuals suspected of having poxvirus (e.g. smallpox or vaccinia). In cells stained with eosin, they appear as p ...

, a type of inclusions in cells infected with poxvirus *

B-type natriuretic peptide Brain natriuretic peptide 32 (BNP), also known as B-type natriuretic peptide, is a hormone secreted by cardiomyocytes in the heart ventricles in response to stretching caused by increased ventricular blood volume. Along with NT-proBNP, BNP is on ...

, a type of brain natriuretic peptides *

B type proanthocyanidin B type proanthocyanidins are a specific type of proanthocyanidin, which are a class of flavanoids. They are oligomers of flavan-3-ols. Dimeric B type proanthocyanidins These molecules have the molecular formula C30H26O12 (molar mass : 578.52 g/m ...

, a specific type of flavanoids *

Type B evaluation of uncertainty In metrology, measurement uncertainty is the expression of the statistical dispersion of the values attributed to a measured quantity. All measurements are subject to uncertainty and a measurement result is complete only when it is accompanied by ...

, an uncertainty in measurement inferred from scientific judgement or other information concerning the possible values of the quantity *

Type B personality Type A and Type B personality hypothesis describes two contrasting personality types. In this hypothesis, personalities that are more competitive, highly organized, ambitious, impatient, highly aware of time management, or aggressive are labeled ...

, a type in the Type A and Type B personality theory

Others

B-type warbird The Romulans () are an extraterrestrials in fiction, extraterrestrial race in the American science fiction franchise ''Star Trek''. They first appeared in the series ''Star Trek: The Original Series, Star Trek'' (1966–1969). They have appeared ...

, a type of Romulan starship *

Type B videotape 1–inch type B VTR (designated Type B by SMPTE) is a reel-to-reel analog recording video tape format developed by the Bosch Fernseh division of Bosch in Germany in 1976. The magnetic tape format became the broadcasting standard in continenta ...

, an open-reel videotape format *

Curtiss-built B-type The B class blimps were patrol airships operated by the United States Navy during and shortly after World War I. The Navy had learned a great deal from the DN-1 fiasco. The result was the very successful B-type airships. Dr. Jerome Hunsaker was a ...

, a type of B class blimp *

LGOC B-type The LGOC B-type is a model of double-decker bus that was introduced in London in 1910. It was both built and operated by the London General Omnibus Company (LGOC). Design and pre-war service B-type buses were built in Walthamstow and replaced t ...

, a model of double-decker bus that was introduced in London on 1910 *

Mann Egerton Type B The Mann Egerton Type B was a 1910s British maritime patrol aircraft developed from the Short Type 184 by Mann Egerton and Company of Norwich. Design and development Mann Egerton were given a contract in 1915 to build the Short Type 184, a two ...

, a 1910s British maritime patrol aircraft *

Toyota Type B engine The Type A engine was a straight-six engine produced from 1935 through 1947 by Toyota. The Type B was a technically more advanced version of the Type A. There was an enlarged version of this, called the Type D, but it did not enter production. The ...

, an internal combustion engine *

Vauxhall B-Type The Vauxhall 27, 30 and 35 h.p. (Vauxhall chassis code "B" type) is a large six cylinder car manufactured by Vauxhall from 1910 to 1914. The 27 h.p. was Vauxhall's first six-cylinder car. History In 1904 Napier had introduced a six-cylinder-en ...

, a large car from 1911 to 1914 * Type ''B'' ship, a U.S. designation for World War II barges

Astronomy

Biology

Others

See also