variant of auto-1 before a vowel: autacoid.

aut Caesar, aut nihil

[out kahy-sahr out ni-hil; English awt see-zer awt nahy-hil]


either a Caesar or nothing; all or nothing. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for aut

Historical Examples of aut

British Dictionary definitions for aut


abbreviation for

Association of University Teachers


combining form

a variant of auto-
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