octant
/ˈɑktənt/
noun
- One eighth of a circle or of a sphere; an arc of 45 degrees.
- Each octant of the sphere was painted a different color.
- The navigator measured the star's altitude using an octant.
- The pie was cut into eight equal slices, each an octant of the whole.
- An instrument used in navigation and astronomy for measuring angles, similar to a sextant but covering 45 degrees.
- Sailors in the 18th century relied on the octant to find their position at sea.
- The museum displayed an antique octant made of brass and wood.
- Before GPS, an octant was essential for celestial navigation.
- In mathematics, any of the eight divisions of three-dimensional space defined by the coordinate axes.
- The region of interest is bounded within the positive octant.
- Students learned to plot points in each octant of 3D space.
- The point (1, 2, 3) lies in the first octant of the coordinate system.
Synonyms