1. The eight part of a circle; an instrument for angular measurement, attached to an arc of 45

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• ictant,
• kctant,
• lctant,
• pctant,
• 0ctant,
• 9ctant,
• oxtant,
• ovtant,
• oftant,
• odtant,
• ocrant,
• ocfant,
• ocgant,
• ocyant,
• oc6ant,
• oc5ant,
• octznt,
• oktant,
• octent,
• octaunt

• octameter,
• octans,
• octane,
• oxtant,
• occitan.

The adjective form of the word "octant" is "octantal".

The plural of the "octant" can be the "octants".

The singular of the "octant" can be the "octant".