adjective
having a projecting lower jaw
• Syn: ↑prognathous, ↑prognathic
• Ant: ↑opisthognathous (for: ↑prognathous)
• Similar to: ↑lantern-jawed
• Derivationally related forms: ↑prognathism (for: ↑prognathic)
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\(ˈ)hī|pägnəthəs\ adjectiveEtymology: hypo- + -gnathous
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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—hypognathism, n.
/huy pog"neuh theuhs/, adj.
having the lower jaw or mandible longer than the upper.
[1870-75; HYPO- + -GNATHOUS]
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hypognathous /hīp- or hip-ogˈnə-thəs/ adjective
Having the lower jaw or mandible protruding
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Main Entry: ↑hypo-
Useful english dictionary. 2012.