Definition of zero in on
- Scientists are hoping to zero in on a cure.
- The gunner zeroed in on the target.
: the arithmetical symbol 0 or 0̸ denoting the absence of all magnitude or quantity
: additive identity
: a value of an independent variable that makes a function equal to zero
: of, relating to, or being a zero
: having no magnitude or quantity : not any
: having no phonetic manifestation
: to determine or adjust the zero of
: to concentrate firepower on the exact range of
: to bring to bear on the exact range of a target
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