Baseball. a play in which a base runner, caught off base, is tagged out by an infielder on a quick throw, usually from the pitcher or catcher.
Electronics. a mechanism that senses mechanical motion and produces a corresponding electric signal.
Origin of pick-off
First recorded in 1935–40; noun use of verb phrase pick off
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019