(definition) by Webster 1913 Wed Dec 22 1999 at 2:16:56

Pro*phrag"ma (?), n.; pl. Prophragmata (#). [NL., fr. Gr. before + , , fence, screen. ] Zool.

An internal dorsal chitinous process between the first two divisions of the thorax of insects.

 

© Webster 1913.

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