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mu·rex | \ ˈmyu̇r-ˌeks 
\
\ plural murices\ ˈmyu̇r-ə-ˌsēz \ or murexes
\ or murexesDefinition of murex
: any of a genus (Murex of the family Muricidae) of marine gastropod mollusks having a rough and often spiny shell, abounding in tropical seas, and yielding a purple dye
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Time Traveler for murex
The first known use of murex was in 1589
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