I. ˈsərkə̇trē, -ə̄k-, -əik-, -tri noun
( -es )
1. : the detailed plan of an electric circuit or network (as of a radio or television receiver)
2. : the components of an electric circuit or network (as tubes and resistors)
II. noun
: the network of interconnected neurons in the nervous system and especially the brain ; also : the neuronal pathways of the brain along which electrical and chemical signals travel