| 释义 |
Definition of quintant in English: quintantnoun ˈkwɪntənt An instrument formerly used for making angular measurements, especially in astronomy and navigation, analogous to a sextant but having a notional arc of 72 degrees rather than 60 degrees, and so measuring up to 72 degrees (or 144 if the instrument has a mirror).
Origin Late 17th century (in an earlier sense). From classical Latin quīntus fifth + -ant, after quadrant and sextant. Definition of quintant in US English: quintantnounˈkwɪntənt An instrument formerly used for making angular measurements, especially in astronomy and navigation, analogous to a sextant but having a notional arc of 72 degrees rather than 60 degrees, and so measuring up to 72 degrees (or 144 if the instrument has a mirror).
Origin Late 17th century (in an earlier sense). From classical Latin quīntus fifth + -ant, after quadrant and sextant. |