英 ['næθɪk; 'neɪ-]美
adj. 颚的；颌的（等于gnathal）
gnathic (adj.)
"pertaining to the jaw," 1882, with -ic + Greek gnathos "jaw, cheek," properly "the lower jaw," from PIE root *genu- (2) "jawbone, chin" (see chin (n.)).
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