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 Sydor Rey born Izydor Reiss (6 September 1908 – 15 November 1979) was a Polish poet and novelist. During the Interbellum he worked in the Jewish orphanage of Janusz Korczak in Warsaw. He dedicated his short story '' Anioł-Stróż'' ("Guardia ...

* 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 giving 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 valve tha ...

, medical equipment *

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

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 a ...

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 s ...

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

Rebar spacer A rebar spacer is a short, rod-like device used to secure reinforcing steel bars, or rebar, within cast assemblies for reinforced concrete structures. The rebar spacers are fixed before the concrete is poured and remain within the structur ...

, in concrete construction

Oil and gas industry

* Spacer, a viscous fluid used to remove

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

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 Airbnb, Inc. ( , an abbreviation of its original name, ...

, 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 ...