[ dek-yoo-muh n ]
/ ˈdɛk yʊ mən /
large or immense, as a wave.
(in ancient Rome) of or relating to the tenth cohort of a legion.
Also called decuman gate. (in ancient Rome) the main gate of a military camp, facing away from the enemy and near which the tenth cohort of the legion was usually stationed.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019