- octanedioic acid,
- octanoic acid,
Origin of octant
Examples from the Web for octant
A third staff (or an octant) was fixed at the end of the horizon-staff, and upon it the angle observed could be read off.
It was in its octant, and showed a crescent finely traced on the dark background of the sky.
Octant made of dark wood and with lignum vitae; brass fittings.Early American Scientific Instruments and Their Makers|Silvio A. Bedini
Thus fig. 59 conveniently represents an octant of the wave surface, which cuts each coordinate plane in a circle and an ellipse.
It is the sextant or some member of the sextant family - such as the quadrant, octant, etc.Lectures in Navigation|Ernest Gallaudet Draper
- any of the eight parts into which the three planes containing the Cartesian coordinate axes divide space
- an eighth part of a circle
Word Origin for octant
instrument for making angular measurements in navigation or astronomy, 1731, from Late Latin octans "the eighth part," from octo "eight" (see octa-) on analogy of quadrant. In geometry, octant meant "the eighth part of a circle."