1694 Federal Register /Vol. 80, No. 8/Tuesday, January 13, 2015/Rules and Regulations ENVIRONMENTAL PROTECTION AGENCY 40 CFR Parts 260 and 261 [EPAâHQâRCRAâ2010â0742; FRLâ9728â5â OSWER] RIN 2050âAG62 Definition of Solid Waste AGENCY: Environmental Protection Agency (EPA).
obturator. 1. a disk or plate that closes an opening. 2. a prosthesis for closing an acquired or congenital opening of the palate (cleft palate). obturator sign pain on outward pressure on the obturator foramen as a sign of inflammation in the sheath of the obturator nerve, probably caused by appendicitis.(ob'tÅ«-rÄ'tÅr),ny structure that occludes an opening. 2. Denoting the obturator foramen, the obturator membrane, or any of several parts in relation to this foramen. 3. A prosthesis used to close an opening in the hard palate, usually in a cleft palate.
(Redirected from Obturate). In the field of firearms and airguns, obturation denotes necessary barrel blockage or fitment by a deformed soft projectile (obturation in general is closing up an opening).he mechanism by which an undersized soft-metal projectile enlarges to fill the barrel is, for hollow-base bullets, expansion from gas pressure within the base cavity and, for solid-base bullets, upsettingâthe combined shortening and thickening that occurs when a malleable metal object is struck forcibly at one end.