† macrognathousadj.
Zoology. Obsolete.
1. Ornithology. Having a very large beak.
ΚΠ
1857 R. G. Mayne Expos. Lexicon Med. Sci. (1860) Macrognathus, having a very large beak..: macrognathous.
2. Having one or both jaws large, protruding, or pathologically enlarged.
ΘΚΠ
the world > life > the body > external parts of body > head > face > jaws > [adjective] > conditions or positions of > having
underhung1683
thick-jawed1689
underjawed1772
jimber-jawed1834
prognathous1836
wapper-jawed1848
prognathic1850
orthognathic1851
orthognathous1851
whopper-jawed1860
macrognathous1864
underhanging1865
macrognathic1874
eurygnathous1878
mesognathous1878
overshot1879
prosognathous1890
mesognathic1892
jut-jawed1943
1864 T. H. Huxley in Reader 5 Mar. The jaws..project more forward than in man, so that the chimpanzee is both macrognathous and prognathous.
Derivatives
macrognathic adj. = sense 2.
ΘΚΠ
the world > life > the body > external parts of body > head > face > jaws > [adjective] > conditions or positions of > having
underhung1683
thick-jawed1689
underjawed1772
jimber-jawed1834
prognathous1836
wapper-jawed1848
prognathic1850
orthognathic1851
orthognathous1851
whopper-jawed1860
macrognathous1864
underhanging1865
macrognathic1874
eurygnathous1878
mesognathous1878
overshot1879
prosognathous1890
mesognathic1892
jut-jawed1943
1874 W. B. Dawkins Cave Hunting vi. 193 The entire maxillary apparatus is so largely developed, that the term ‘macrognathic’, introduced by Professor Huxley, is particularly applicable.
macrognathism n. rare the condition of being macrognathous.
ΚΠ
1864 T. H. Huxley in Reader 19 Mar. 364/3 The macrognathism and prognathism are carried to about the same extent.
1881 Jrnl. Anthropol. Inst. 10 162 Macrognathism being generally found in the macrodont, or large-toothed races.
This entry has been updated (OED Third Edition, March 2000; most recently modified version published online June 2018).
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adj.1857