A radical is achemical speciesthat contains an unpaired electron. In the past such species were often called "free radicals". Radicals are usually formed when a single covalent bond breaks to leave an unpaired electron on each of the two species created by the bond breaking: this is called h...
radical [rad´ĭ-kal] 1.thorough or sweeping; directed to the cause or root of a morbid process. 2.a group of atoms that enters into and goes out of chemical combination without change and that forms one of the fundamental constituents of a molecule. ...
Definition of radical RadicalRadical Rad"i*cal, a. [F., fr. L. radicalis having roots, fr. radix, -icis, a root. See Radix.] 1. Of or pertaining to the root; proceeding directly from the root. 2. Hence: Of or pertaining to the root or origin; reaching to the center, to the...
The meaning of FREE RADICAL is an especially reactive atom or group of atoms that has one or more unpaired electrons; especially : one that is produced in the body by natural biological processes or introduced from an outside source (such as tobacco smok
a. part of the embryo of seed-bearing plants that develops into the main root b. a very small root or rootlike part 2. (Anatomy) anatomy any bodily structure resembling a rootlet, esp one of the smallest branches of a vein or nerve 3. (Chemistry) chem a variant spelling of radical11...
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Select a language: ra·dic·u·lar a.radical, rel. a la raíz u origen. English-Spanish Medical Dictionary © Farlex 2012 Want to thank TFD for its existence?Tell a friend about us, add a link to this page, or visitthe webmaster's page for free fun content. ...
a very small root or rootlike part anatomyany bodily structure resembling a rootlet, esp one of the smallest branches of a vein or nerve chema variant spelling ofradical (def. 11) Origin of radicle 1 C18: from Latinrādīculaa little root, fromrādīxroot ...
s omniscience andbenevolenceand with divinegrace, which allegedly is necessary for any meritorious act. A prominent feature ofexistentialismis the concept of a radical, perpetual, and frequently agonizing freedom ofchoice.Jean-Paul Sartre(1905–80), for example, spoke of the individual “condemned ...
The Social Construction of Lesbianism: A Reappraisal. general description of the work; Kitzinger's critique of the then emerging field of gay affirmative psychology; Unique combination of radical lesbian feminist politics with social constructionist theory; Defining qualities of Kitzinger's work... Clark...