Dictionarypro•tho•raxPronunciation: (prō-thôr'aks, -thōr'-), [key] —n., —pl. -tho•rax•es, -tho•ra•cesPronunciation: (-thôr'u-sēz", -thōr'-). [key] the anterior division of the thorax of an insect, bearing the first pair of legs. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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