| one of the positive or negative numbers 1, 2, 3, or zero |
| the letter used as the symbol for the ratio of the circumference of a circle to its diameter, or the ratio itself: 3.141592+ |
| perfect | |
| —adj | |
| 1. | having all essential elements |
| 2. | unblemished; faultless: a perfect gemstone |
| 3. | correct or precise: perfect timing |
| 4. | utter or absolute: a perfect stranger |
| 5. | excellent in all respects: a perfect day |
| 6. | maths exactly divisible into equal integral or polynomial roots: 36 is a perfect square |
| 7. | botany |
| a. (of flowers) having functional stamens and pistils | |
| b. (of plants) having all parts present | |
| 8. | grammar denoting a tense of verbs used in describing an action that has been completed by the subject. In English this is a compound tense, formed with have or has plus the past participle |
| 9. | music |
| a. of or relating to the intervals of the unison, fourth, fifth, and octave | |
| b. Compare imperfect full, Also: final (of a cadence) ending on the tonic chord, giving a feeling of conclusion | |
| 10. | archaic positive certain, or assured |
| —n | |
| 11. | grammar |
| a. the perfect tense | |
| b. a verb in this tense | |
| —vb | |
| 12. | to make perfect; improve to one's satisfaction: he is in Paris to perfect his French |
| 13. | to make fully accomplished |
| 14. | printing to print the reverse side of (a printed sheet of paper) |
| [C13: from Latin perfectus, from perficere to perform, from per through + facere to do] | |
| usage For most of its meanings, the adjective perfect describes an absolute state, i.e. one that cannot be qualified; thus something is either perfect or not perfect, and cannot be more perfect or less perfect. However when perfect means excellent in all respects, a comparative can be used with it without absurdity: the next day the weather was even more perfect | |
| 'perfectness | |
| —n | |