Spacer may refer to:

Arts and entertainment

* "Spacer", a song by Sheila and B. Devotion from the 1980 album '' King of the World'' * ''Spacer'' (album), 2011 jazz album by Jason Adasiewicz * Spacers, a fictional sociocultural group in Isaac Asimov's ''Robot'' series of novels and short stories

Science and technology

Biology and medicine

Asthma spacer A spacer is a device used to increase the ease of administering aerosolized medication from a metered-dose inhaler (MDI). It adds space in the form of a tube or "chamber" between the mouth and canister of medication. Most spacers have a one-way val ...

, medical equipment *

Orthodontic spacer Orthodontic separators (also known as spacers) are rubber bands or metal appliances used in orthodontics. Spacers are placed between the molars at the second orthodontic appointment before molar bands are applied. They are usually added a week be ...

Spacer DNA Spacer DNA is a region of non-coding DNA between genes. The terms intergenic spacer (IGS) or non-transcribed spacer (NTS) are used particularly for the spacer DNA between the many tandemly repeated copies of the ribosomal RNA genes. In bacteria, ...

, in genetics * Spacer in joint replacement

Other uses in science and technology

* Spacer, an element in HTML

web design Web design encompasses many different skills and disciplines in the production and maintenance of websites. The different areas of web design include web graphic design; user interface design (UI design); authoring, including standardised code an ...

Spacers and standoffs In general, a spacer is a solid material used to separate two parts in an assembly. Spacers can vary in size from microns to centimeters. They can be made of metal, plastic, glass, and other materials. Shapes include flat sheet, cylindrical and ...

, unthreaded pieces of rigid tubing, often used in electronic equipment *

Rebar spacer A rebar spacer is a device that secures the reinforcing steel or "rebar" in reinforced concrete structures as the rebar is assembled in place before the final concrete pour. The spacers are left in place for the pour to keep the reinforcing ...

, in concrete construction

Oil and gas industry

* Spacer, a viscous fluid used to remove

drilling fluid In geotechnical engineering, drilling fluid, also called drilling mud, is used to aid the drilling of boreholes into the earth. Often used while drilling oil and natural gas wells and on exploration drilling rigs, drilling fluids are also us ...

s ahead of cement slurry. The spacer is made up with specific fluid attributes, such as viscosity and density that are designed to prohibit the interaction between the mud and cement slurry.

Other uses

Spacer (self-storage) Spacer is an online marketplace for self storage, founded in 2015 and based in Sydney. Spacer allows people to rent excess space to other people. Spacer has similar features to Airbnb and ride-sharing Carpooling (also car-sharing, ride-s ...

, an Australian online market for self storage * Spacer or

flesh tunnel A plug (sometimes earplug or earspool), in the context of body modification, is a short, cylindrical piece of jewelry commonly worn in larger-gauge body piercings. Modern western plugs are also called flesh tunnels. Because of their size—which ...