b has definitions from the fields of biology,immunology,physics,acoustics,chemistry,nuclear physics
1
[ noun ] (immunology) the blood group whose red cells carry the B antigen

Synonyms

group_B type_B

Used in print

(M. Yokoyama et al., "Chemical and serological...)

Fahey and Morrison used a single , continuous gradient at constant pH for the fractionation of anti - A and anti - B agglutinins from preisolated � g-globulin samples .

Serum samples were obtained from normal group A , group B and group O donors .

Anti - A and anti - B activities were determined in fractions from the sera of group A , group B or group O donors by the following tube agglutination methods .

Anti - A and anti - B activities were determined in fractions from the sera of group A , group B or group O donors by the following tube agglutination methods .

One drop of each sample was added to one drop of a 2 % suspension of group * * f or group B red_cells in a small * * f test_tube .

Related terms

blood_group

2
[ noun ] (biology) aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil

Synonyms

bacilli bacillus

Used in print

(LeRoy Fothergill, "Biological Warfare", in Peter...)

An aqueous suspension of the spores of B. subtilis , var. niger , generally known as Bacillus_globigii , was aerosolized using commercially available nozzles .

3
[ noun ] (chemistry) a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
4
[ noun ] originally thought to be a single vitamin but now separated into several B vitamins
5
[ noun ] the 2nd letter of the Roman alphabet

Related terms

letter Roman_alphabet

6
[ noun ] (atomic or nuclear physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter

Synonyms

barn

Related terms

area_unit nuclear_physics

7
[ noun ] (physics,acoustics) a logarithmic unit of sound intensity equal to 10 decibels

Synonyms

bel

Related terms

sound_unit

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