hypognathous

adjective hy·pog·na·thous \ (ˈ)hī¦pägnəthəs \

Definition of hypognathous

1 :having the lower jaw longer than the upper
2 :having the mouthparts ventrally directed used especially of certain insects with biting mouthparts directed downward and often somewhat backward — compare prognathous

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Origin and Etymology of hypognathous

hypo- + -gnathous


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