- the state or quality of being precise.
- accuracy; exactness: to arrive at an estimate with precision.
- mechanical or scientific exactness: a lens ground with precision.
- punctiliousness; strictness: precision in one's business dealings.
- Mathematics. the degree to which the correctness of a quantity is expressed.Compare accuracy(def 3).
- Chemistry, Physics. the extent to which a given set of measurements of the same sample agree with their mean.Compare accuracy(def 2).
- of, relating to, or characterized by precision: precision swimming; precision instruments for aircraft.
Origin of precision
- the quality of being precise; accuracy
- (modifier) characterized by or having a high degree of exactnessprecision grinding; a precision instrument
Word Origin and History for precisional
1630s, "a cutting off (mentally), abstraction," from French précision (16c.) and directly from Latin praecisionem (nominative praecisio) "a cutting off," noun of action from past participle stem of praecidere (see precise). Meaning "preciseness" is from 1740.