murex noun. ['mjʊǝrɛks] Pl. murices ['mjʊǝrɪsi:z], murexes. L16.
[Latin, perh. rel. to Greek muax sea-mussel.]
Any of various spiny-shelled predatory gastropod molluscs of the genus Murex and related genera, of tropical and temperate seas, from some of which the dye Tyrian purple was formerly obtained. Also murex shell.

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