a room in which surgical operations are performed
Why Do Brits And Americans Spell Words Differently?Brits and Americans may share a mother tongue, but when it comes to spelling a handful of common terms, we just can't seem to settle on a shared favorite—or is it favourite?—approach.
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Examples from the Web for operating theatre
And somebody has to get the day's orders from the dispensary and operating-theatre and sterilizing-ward.A Patriotic Schoolgirl|Angela Brazil