central
1. cen.tral \'sen-tr*l\ \-tr*-le-\ aj [L centralis, fr. centrum center -
more at CENTER] 1: containing or constituting a center 2: ESSENTIAL,
PRINCIPAL 3: situated at, in, or near the center 4a: centrally placed and
superseding separate scattered units {~ h eating} 4b: controlling or
directing local or branch activities 5: holding to a middle between
extremes : MODERATE 6: of, relating to, or comprising the brain and spinal
cord; also :: originating within the central nervous system {~ deafness} -
cen.tral.ly av
2. central n : a telephone exchange or operator