Sentence:  In the mouth: various irregularities, such as wide separation of the teeth; abnormal development of the canines; the prognathic or <WSD>agnathic</WSD> jaw; high arching of the palate; cleft palate—all are found more frequently among persons otherwise degenerate than in normal individuals. 
Meaning of the word marked with <WSD> tags:  Afflicted by or characteristic of agnathia.