New Collegiate Dictionary. 2001.
free radical — n technical an atom or group of atoms with at least one free ↑electron, which combines with other atoms very easily ▪ It is thought that free radicals can damage cells … Dictionary of contemporary English
free radical — n an esp. reactive atom or group of atoms that has one or more unpaired electrons esp one that is produced in the body by natural biological processes or introduced from outside (as in tobacco smoke, toxins, or pollutants) and that can damage… … Medical dictionary
free radical — noun count SCIENCE a molecule that has an extra ELECTRON and can react very easily with other molecules. Free radicals sometimes form in the human body and can cause cancer … Usage of the words and phrases in modern English
free radical — n. an atom or molecule having at least one unpaired electron: free radicals are usually reactive and unstable … English World dictionary
free radical — noun an atom or group of atoms with at least one unpaired electron; in the body it is usually an oxygen molecule that has lost an electron and will stabilize itself by stealing an electron from a nearby molecule (Freq. 2) in the body free… … Useful english dictionary
free radical — UK / US noun [countable] Word forms free radical : singular free radical plural free radicals science a molecule that has an extra electron and can react very easily with other molecules. Free radicals sometimes form in the human body and can… … English dictionary
free radical — laisvasis radikalas statusas T sritis fizika atitikmenys: angl. free radical vok. freies Radikal, n rus. свободный радикал, m pranc. radical libre, m … Fizikos terminų žodynas
free radical — laisvasis radikalas statusas T sritis chemija apibrėžtis Atomas arba grupė, turinti orbitalę su nesuporuotu elektronu. atitikmenys: angl. free radical rus. свободный радикал … Chemijos terminų aiškinamasis žodynas
Free radical addition — is an addition reaction in organic chemistry involving free radicals [L.G. Wade s Organic Chemistry 5th Ed. (p 319) Mechanism supplements original.] . The addition may occur between a radical and a non radical, or between two radicals.The basic… … Wikipedia
Free radical (disambiguation) — 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.Chemistry*Free radical addition An addition reaction… … Wikipedia
Free-radical (culture) — Free radical, is a term regarding a sub cultural trend, originating in the early 21st century.The Free radical movement is part of a new trend being observed in the 21st Century. Members within this group identify themselves as “Free radicals”.… … Wikipedia
