Opisthognathous
[op-is-thog-nuh-thuh s] /ˌɒp ɪsˈθɒg nə θəs/
adjective, Zoology.
1.
having receding jaws.
/ˌɒpɪsˈθɒɡnəθəs/
adjective
1.
(of a person or animal) having receding jaws
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