Free radical is a chemistry term that describes an atomic or molecular species with unpaired electrons on an otherwise open shell configuration. The term may also refer to one of the following.

[edit] Chemistry

• Free radical addition – An addition reaction in organic chemistry involving free radicals.
• Free Radical Centre – A research center located in Australia that works in all areas of free radical chemistry.
• Free radical halogenation – A type of halogenation in organic chemistry.
• Free-radical theory – A chemistry theory that attributes organisms aging because cells accumulate free radical damage with the passage of time.

[edit] Other

• Free Radicals (band) – A jazz, funk, and international music group based in Houston, Texas.
• Free Radicals (film) – An animated short film by avant-garde filmmaker Len Lye
• Free Radical (magazine) – A New Zealand-based magazine.
• Crytek UK, formerly Free Radical Design – A video game developer, based in Nottingham, England.
• Free Radicals (song) – A song by Oklahoma City based rock band The Flaming Lips on their album At War with the Mystics.

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