antiserum well

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• double diffusion in two dimensions — double diffusion in which antigen and antiserum are placed in wells cut in an agar plate; antigen solutions to be compared are placed in wells equidistant from the antiserum well. Three principal types of reaction may occur, reaction of identity …   Medical dictionary

• reaction of identity — a reaction pattern seen in double diffusion in two dimensions: the precipitin lines between the antigen wells and the antiserum well stop at their point of intersection, indicating that the antigen samples are identical. See also r. of… …   Medical dictionary

• reaction of nonidentity — a reaction pattern seen in double diffusion in two dimensions: the precipitin lines between the antigen wells and the antiserum well cross, indicating that the antigen samples have no antigenic determinants in common. See also r. of identity and… …   Medical dictionary

• reaction of partial identity — a reaction pattern seen in double diffusion in two dimensions: one of the precipitin lines between the antigen wells and the antiserum well stops at the point of intersection, whereas the other continues past it, indicating that the antigen… …   Medical dictionary

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