n 1  :  something to be affected by an action or development : specif  :  an organ, part, or tissue that is affected by the action of a hormone  2 a  :  the metallic surface usu. of platinum or tungsten upon which the stream of electrons within an X-ray tube is focused and from which the X rays are emitted  b  :  a body, surface, or material bombarded with nuclear particles or electrons  3  :  the thought or object that is to be recognized (as by telepathy) or affected (as by psychokinesis) in a parapsychological experiment .
 
 
 
Similar sounding terms:  tur·gid 
 
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