English Explanatory Dictionary

tri-

English dictionary entry

Meanings

prefix
  1. Three.
  2. Used for the digit three to form systematic element names of elements whose existence has been predicted, and which have not yet been given a trivial name.
prefix
  1. Used in combination with a known element name (e.g. 'tri-silicon', 'tri-lead') to designate an unknown element that would reside three periods lower than the known element on a Mendeleev-type periodic table. See Mendeleev's predicted elements.

Pronunciation

/tɹaɪ/ LL-Q1860 (eng)-Flame, not lame-tri-.wav

Word forms

tri-

Etymology

PIE word *tréyes From Latin tri- (“three”) and Ancient Greek τρι- (tri-, “three”).

Synonyms

ter-

Related words

ter- -tri- triad triangle triceps trident triennial trifoliate trigon trigonometry trimester trinity trio tripartite triplet tripod triptych trireme triumvirate trivia eka- dvi- number
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