[pri-sizh-uh
n] 
| 1. | the state or quality of being precise. |
| 2. | accuracy; exactness: to arrive at an estimate with precision. |
| 3. | mechanical or scientific exactness: a lens ground with precision. |
| 4. | punctiliousness; strictness: precision in one's business dealings. |
| 5. | Mathematics. the degree to which the correctness of a quantity is expressed. Compare accuracy (def. 3). |
| 6. | Chemistry, Physics. the extent to which a given set of measurements of the same sample agree with their mean. Compare accuracy (def. 2). |
| 7. | of, pertaining to, or characterized by precision: precision swimming; precision instruments for aircraft. |