Spacer
A spacer can refer to something used to separate two parts in an assembly. Spacer can also refer to: == Arts and entertainment == Spacer (album), a 2011 album by Jason Adasiewicz "Spacer", a song by Sheila and B. Devotion from the 1980 album King of the World "Spacer", a 1938 short story by Sydor Rey Spacers, a fictional sociocultural group in Isaac Asimov's Robot series of novels and short stories == Science and technology == === Biology and medicine === Asthma spacer, medical equipment Orthodontic spacer Spacer DNA, in genetics Spacer in joint replacement === Other uses in science and technology === Spacer, an element in HTML web design Spacers and standoffs, unthreaded pieces of rigid tubing, often used in electronic equipment Rebar spacer, in concrete construction == Oil and gas industry == Spacer, a viscous fluid used to remove drilling fluids ahead of cement slurry.