Synonyms
Antonyms
Etymology

1. radical

adjective. ['ˈrædɪkəl'] (used of opinions and actions) far beyond the norm.

Synonyms

  • ultra
  • immoderate

Antonyms

  • artifact
  • stranger
  • introvert

Etymology

  • radical (French)
  • radicalis (Latin)

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Rhymes with Free Radical

Sentences with free-radical


1. Noun Phrase
The unpaired electron in a free radical will now search for electrons to pair with in the ethylene feedstock.

2. Noun Phrase
Cooked garlic might also be more effective in protecting cells against free radical damage.

3. Noun Phrase
Antioxidants, a component of certain foods, may work to decrease the adverse effects of free radicals.

4. Noun Phrase
Garlic also contains the mineral selenium, an antioxidant that helps fight free radicals, which can damage joints.

2. radical

noun. ['ˈrædɪkəl'] (chemistry) two or more atoms bound together as a single unit and forming part of a molecule.

Synonyms

  • alkyl
  • arsenic group
  • nitrite
  • molecule
  • cyanide group
  • vinyl
  • benzyl group
  • ketone group
  • methylene group
  • aldehyde radical
  • aldehyde group
  • allyl radical
  • propyl group
  • glyceryl
  • uranyl
  • carbonyl group
  • cyanide radical
  • vinyl group
  • methylene radical
  • benzyl radical
  • azido radical
  • hydrazo radical
  • azo radical
  • butyl
  • cacodyl radical
  • uranyl group
  • hydroxyl radical
  • allyl group
  • methylene
  • acyl
  • alkyl radical
  • uranyl radical
  • benzyl
  • vinyl radical
  • acyl group
  • alcohol group
  • hydrazo group
  • alkyl group
  • building block
  • azido group
  • benzoyl group
  • propyl radical
  • cyano group
  • alcohol radical
  • chromophore
  • azo group
  • allyl
  • carboxyl group
  • amino group
  • amino
  • benzoyl radical
  • carboxyl
  • hydroxyl
  • chemical group
  • unit
  • cacodyl group
  • nitro group
  • cacodyl
  • propyl
  • hydroxyl group
  • amyl
  • cyano radical

Antonyms

  • bad person
  • acquaintance
  • agonist
  • liberator

Etymology

  • radical (French)
  • radicalis (Latin)

3. radical

adjective. ['ˈrædɪkəl'] markedly new or introducing radical change.

Synonyms

  • new

Antonyms

  • withholder
  • male

Etymology

  • radical (French)
  • radicalis (Latin)

4. radical

noun. ['ˈrædɪkəl'] 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.

Synonyms

  • atom

Antonyms

  • good person
  • drinker

Etymology

  • radical (French)
  • radicalis (Latin)

5. free

adjective. ['ˈfriː'] able to act at will; not hampered; not under compulsion or restraint.

Synonyms

  • liberated
  • footloose
  • freedom
  • clear
  • available
  • self-governing
  • loose
  • atrip
  • unconstrained
  • unconfined
  • independent
  • aweigh
  • unimprisoned
  • escaped
  • on the loose
  • at large
  • uncommitted
  • unhampered
  • unbound
  • out-of-school
  • unrestrained
  • emancipated
  • autonomous
  • sovereign

Antonyms

  • restricted
  • restrained
  • dependent
  • confined
  • unfree

Etymology

  • fre (Middle English (1100-1500))
  • freo (Old English (ca. 450-1100))

6. free

verb. ['ˈfriː'] grant freedom to; free from confinement.

Synonyms

  • parole
  • loose
  • run
  • unchain
  • unloosen
  • bail out
  • unspell
  • unloose
  • bail
  • liberate

Antonyms

  • spell
  • strengthen
  • official
  • responsible

Etymology

  • fre (Middle English (1100-1500))
  • freo (Old English (ca. 450-1100))

7. free

adjective. ['ˈfriː'] unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion.

Synonyms

  • liberated

Antonyms

  • unclearness
  • unclear

Etymology

  • fre (Middle English (1100-1500))
  • freo (Old English (ca. 450-1100))

8. free

adjective. ['ˈfriː'] costing nothing.

Synonyms

  • costless
  • complimentary
  • gratuitous
  • unpaid

Antonyms

  • opacity
  • opaque
  • clutter
  • convict

Etymology

  • fre (Middle English (1100-1500))
  • freo (Old English (ca. 450-1100))

9. free

adjective. ['ˈfriː'] not occupied or in use.

Antonyms

  • disapprove

Etymology

  • fre (Middle English (1100-1500))
  • freo (Old English (ca. 450-1100))

10. free

verb. ['ˈfriː'] remove or force out from a position.

Synonyms

  • dislodge
  • withdraw
  • take
  • take away

Antonyms

  • troubled
  • ill-defined
  • imperfect
  • guilt

Etymology

  • fre (Middle English (1100-1500))
  • freo (Old English (ca. 450-1100))
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