octant
oc·tant
noun
1.
a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
Origin
From Latin octāns. Doublet of Octans.
Related words
Broader terms
Part of
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.