<p><strong>Noun:</strong></p><ul><li>the state or quality of being precise.</li><li>accuracy; exactness: to arrive at an estimate with precision.</li><li>rigor; mechanical or scientific exactness: a lens ground with precision.</li><li>punctiliousness; strictness: precision in one's business dealings.</li><li>Mathematics: the degree to which the correctness of a quantity is expressed.</li><li>Chemistry, Physics: the extent to which a given set of measurements of the same sample agree with their mean.</li></ul><p><strong>Adjective:</strong></p><ul><li>of, relating to, or characterized by precision: precision swimming; precision instruments for aircraft.</li></ul>