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opisthognathous
op·is·thog·na·thous [ òppiss thógnəthəss ]


adjective 
Definition:
 
with receding jaws: having jaws that slope backward or mouthparts that face backward
[Mid-19th century. < Greek opisthen "behind"]

op·is·thog·na·thism noun
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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