zero in on

phrasal verb
Updated on: 15 Nov 2017

Definition of zero in on

1 : to direct all of one's attention to (someone or something)
  • Scientists are hoping to zero in on a cure.
2 : to aim something (such as a gun or camera) directly at (someone or something)
  • The gunner zeroed in on the target.

Word by Word Definitions

zero play
  1. : the arithmetical symbol 0 or 0̸ denoting the absence of all magnitude or quantity

  2. : additive identity

  3. : a value of an independent variable that makes a function equal to zero

  1. : of, relating to, or being a zero

  2. : having no magnitude or quantity : not any

  3. : having no phonetic manifestation

  1. : to determine or adjust the zero of

  2. : to concentrate firepower on the exact range of

  3. : to bring to bear on the exact range of a target


Seen and Heard

What made you want to look up zero in on? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

an inference not connected logically

Get Word of the Day daily email!

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!