1 definition by boms_59

Top Definition
Occuring every three days. prefix tri- means "three," so tridiem means "every three days." See also bidaily. The bi- prefix on bidaily means "divides into two," so that bidaily events occur twice each day
Tridiem fishing trips were needed to satisy the food needs of the community.
by boms_59 August 23, 2010

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