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o
has definitions from the fields of immunology,chemistry
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[ noun ] (immunology) the blood group whose red cells carry neither the A nor B antigens
Examples "people with type O blood are universal donors" Used in print (M. Yokoyama et al., "Chemical and serological...)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 . In several instances group O cells were also used as controls . There appeared to be no difference in the distribution of anti - A and anti - B activity in group O serum , though in two group O donors ( J._F. and E._M. ) only one type of agglutinin was found in the regions of low anionic binding capacity ( Figs. 1 and 2 ) . There appeared to be no difference in the distribution of anti - A and anti - B activity in group O serum , though in two group O donors ( J._F. and E._M. ) only one type of agglutinin was found in the regions of low anionic binding capacity ( Figs. 1 and 2 ) . Related terms |
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[ noun ] (chemistry) a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
Synonyms Used in print (James A. Ibers et al., "Proton magnetic resonance...)These data lead to a structure in which sheets of Cr atoms lie between two sheets of O atoms . The O atoms in each sheet are close_packed and each Cr atom is surrounded by a distorted octahedron of O atoms . The O atoms in each sheet are close_packed and each Cr atom is surrounded by a distorted octahedron of O atoms . Related terms gas chemical_element liquid_oxygen air water ozone oxygenize oxygenate |
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[ noun ] the 15th letter of the Roman alphabet
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