focal reaction

fo·cal re·ac·tion

a reaction that occurs at the point of entrance of an infecting organism or of an injection, as in the Arthus phenomenon.
Synonym(s): local reaction

fo·cal re·ac·tion

(fō'kăl rē-ak'shŭn)
A reaction that occurs at the point of entrance of an infecting organism or of an injection, as in the Arthus phenomenon.
Synonym(s): local reaction.
References in periodicals archive ?
2005), in order to infer whether participants are utilizing additional resources to successfully perform a PM task, the control block reaction time mean is subtracted from the focal reaction time means to obtain a "cost" measure for the focal PM block.