free radical

free rad·i·cal

F f

Transcription

- US Pronunciation
- US IPA
- [free rad-i-kuh l]
- /fri ˈræd ɪ kəl/

- US Pronunciation
- US IPA
- [free rad-i-kuh l]
- /fri ˈræd ɪ kəl/

Definitions of free radical words

noun free radical an atom or molecule that bears an unpaired electron and is extremely reactive, capable of engaging in rapid chain reactions that destabilize other molecules and generate many more free radicals: in the body, deactivated by antioxidants, uric acid, and certain enzyme activities. 1
countable noun free radical Free radicals are atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of ageing, heart disease, and some cancers. 0
noun free radical an atom or group of atoms containing at least one unpaired electron and existing for a brief period of time before reacting to produce a stable molecule 0
noun free radical an atom or molecule having at least one unpaired electron: free radicals are usually very reactive and unstable, and can damage healthy body cells 0
noun free radical Free radicals are atoms that contain one or more unpaired electrons. Free radicals are believed to be a cause of aging, heart disease, and some cancers. 0
noun free radical (chemistry, physics) A molecule, ion or atom that has one or more unpaired electrons, and which is generally highly reactive (and therefore often occurs only as a transient species). 0

See all 6 definitions of free radical

Information block about the term

Origin of free radical

First appearance:

before 1895

One of the 18% newest English words

First recorded in 1895-1900

Historical Comparancy

Parts of speech for Free radical

noun

adjective

verb

adverb

pronoun

preposition

conjunction

determiner

exclamation

Full grammatical hierarchy of Free radical

free radical popularity

This term is known only to a narrow circle of people with rare knowledge. Only 29% of English native speakers know the meaning of this word.

According to our data about 69% of words is more used. This is a rare but used term. It occurs in the pages of specialized literature and in the speech of educated people.

free radical usage trend in Literature

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