trivium

n. (during the Middle Ages) three lowest of the seven liberal arts (grammar, rhetoric, and logic)

Trivium is the Latin singular form of trivia. It may refer to the following:Trivium (band), a band from Orlando, FloridaTrivium (cipher), a synchronous stream cipherTrivium (education), in medieval educational theoryTrivium (store), a clothing storeTrivium Charontis, a geographical feature on the planet Mars
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n. (grammar, rhetoric, and logic) trivium, three lowest of the seven liberal arts (during the Middle Ages)

n. trivium, (during the Middle Ages) three lowest of the seven liberal arts (grammar, rhetoric, and logic)

(n.)
The three anterior ambulacra of echinoderms, collectively.
  

(n.)
The three " liberal" arts, grammar, logic, and rhetoric; -- being a triple way, as it were, to eloquence.