Definition of polyglot:
(adj) :
containing, or made up, of, several languages; versed in, or speaking, many languages
"a polyglot lexicon; a polyglot Bible"
(n) :
one who speaks several languages; a book containing several versions of the same text, or containing the same subject matter in several languages; esp., the Scriptures in several languages
"a polyglot, or good linguist -
Howell"