Prognathism in a sentence as a noun

The characteristics are length of arm, prognathism, a heavy massive cranium with large zygomatic arches, flat nose depressed at base, &c. But in one important respect, the character of the hair, the white man stands in closer relation to the higher apes than does the Negro.

Prognathism definitions

noun

the condition of being prognathous; the condition of having a projecting jaw