| The model put forward for the action of BDL suggests that auxin is involved in determining hypophyseal cell fate at the octant stage. |
| The arc was extended from an octant to a sextant and a stout handle was added at the back of the instrument. |
| Thus fig. 59 conveniently represents an octant of the wave surface, which cuts each coordinate plane in a circle and an ellipse. |
| The scutellum arises from octant cells, which also contribute to the cotyledon. |
| William Logan won an octant, a less advanced version of a sextant, as a mathematics prize in university. |
| The partition of the quadrant cells in a transverse plane then produces an octant stage. |
