Definify.com
Webster 1913 Edition
Trivium
‖
1.
The three “ liberal” arts, grammar, logic, and rhetoric; – being a triple way, as it were, to eloquence.
☞ The trivium and quadrivium together made up the seven liberal arts. See
Quadrivium
. 2.
(Zool.)
The three anterior ambulacra of echinoderms, collectively.