Definition of "peripheral" in English

adjective

1. On the periphery or boundary.

2. Beside the point.

3. Unimportant.

4. Auxiliary.

5. (neuroanatomy) Related to or located in the peripheral nervous system.

noun

1. (computing) A peripheral device.

2. Peripheral vision.

   • 2014, Bill Ladson, "Zimmerman handles left field with ease -- and no E's" on MLB.com I was kind of looking at the ball, keeping him in my peripheral and all of sudden I see him closing in on the ball.