Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Immunology

fluorescence-activated cell sorter (FACS)

Biology; Immunology

An instrument that uses a laser to differentially deflect cells bound to fluorochrome-linked antibodies thus sorting the cells into fluorescent-positive and fluorescent-negative ...

fluorescent antibody

Biology; Immunology

An antibody coupled with a fluorescent dye, used to detect antigen on cells, tissues, or microorganisms.

follicle

Biology; Immunology

Circular or oval areas of lymphocytes in lymphoid tissues rich in B cells. They are present in the cortex of lymph nodes and in the splenic white pulp. Primary follicles contain B ...

hybridoma

Biology; Immunology

An immortalized hybrid cell resulting from the in vitro fusion of an antibody-secreting B cell with a myeloma; it secretes antibody without stimulation and proliferates ...

hyperacute graft rejection

Biology; Immunology

Rapid (minutes to hours) rejection of a graft mediated by preformed antibodies of the host reacting with the graft.

hypergammaglobulinemia

Biology; Immunology

Elevated serum immunoglobulin levels. A polyclonal increase in immunoglobulins in the serum occurs in any condition where there is continuous stimulation of the immune system, ...

hyperimmune

Biology; Immunology

A descriptor for an animal with a high level of immunity that is induced by repeated immunization to generate large amounts of functionally effective antibodies, in comparison to ...