[ ok-tanz ]
/ ˈɒk tænz /

noun, genitive Oc·tan·tis [ok-tan-tis] /ɒkˈtæn tɪs/. Astronomy.

the Octant, a southern constellation that contains the south celestial pole.

Origin of Octans

< Late Latin: eighth part of a circle, equivalent to oct- oct- + -āns, as in quadrāns quadrant

Definition for octans (2 of 2)


[ ok-tuh n ]
/ ˈɒk tən /


(of a fever) occurring every eighth day.


an octan fever.

Origin of octan

1895–1900; < French octane, Middle French octaine, derivative of Latin octō eight, on the model of quartaine quartan
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for octans


/ (ˈɒktænz) /

noun Latin genitive Octantis (ɒkˈtæntɪs)

a faint constellation in the S hemisphere in which the S celestial pole is situated
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for octans


[ ŏktăn′ ]


Occurring every eighth day. Used of a recurring fever.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.