protuberantly

“As Mr. Hagan declared himself his lower jaw came more protuberantly forward and his eyes blazed with an increasing truculence.”

The Tyranny of Weakness

“I saw Levy clench and unclench his great fists, and his canine jaw working protuberantly as he ground his teeth.”

Mr. Justice Raffles

“A blest little old-world refuge it must have seemed to us, with its protuberantly-paved and peculiarly resonant small court and idle _communs_ beside it, accessible by a high grille where the jangle of the bell and the clatter of response across the stones might have figured a comprehensive echo of all old Paris.”

A Small Boy and Others