Periproct :: Periproct (n.) The region surrounding the anus, particularly of echinoderms..
 
	Periproctitis :: Periproctitis (n.) Inflammation of the tissues about the rectum.
 
	
	Riprap :: Riprap (n.) A foundation or sustaining wall of stones thrown together without order, as in deep water or on a soft bottom..
 
	Riprap :: Riprap (v. t.) To form a riprap in or upon.