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Meaning of quadrilingual

quad•ri•lin•gual

Pronunciation: (kwod"ru-ling'gwul or, Can., -ling'gy-ul), [key]
— adj.
  1. using or involving four languages: a quadrilingual person; a quadrilingual translation of the Bible.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.