- a unit used in meteorology to measure cloud cover, equivalent to a cloud cover of one eighth of the sky
C20: from Greek okta-, oktō eight
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
Examples from the Web for okta
There he was compelled to kneel before Okta, the successor of Genghis.The Story of Russia
R. Van Bergen, M.A.