radiator hose
radiator hose

radical


Definition: Meaning of, radical in English to English dictionary.

Pronunciation: / ˈradɪk(ə)l /

  • adjective
  • synonym
  • antonym
Word Forms:
Positive Comparative Superlative
N/A N/A N/A
  1. change/difference a radical change or difference is very big and important
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  2. opinions radical ideas are very new and different, and are against what most people think or believe [↪  conservative]
    SYNONYM
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    ANTONYM
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  3. people someone who is radical has ideas that are very new and different, and against what most people think or believe
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  4. good American English informal very good or enjoyable
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synonym
antonym
  • noun
  • synonym
  • antonym
Word Forms:
Singular Plural
radical radicals
[countable]
  1. someone who has new and different ideas, especially someone who wants complete social and political change [↪  conservative]
    SYNONYM
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synonym
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radical used in phrases

  • acetyl radical (noun)
    1. CH3CO- the organic group of acetic acid
  • alcohol radical (noun)
    1. the chemical group -OH
  • aldehyde radical (noun)
    1. the chemical group -CHO
  • alkyl radical (noun)
    1. any of a series of univalent groups of the general formula CnH2n+1 derived from aliphatic hydrocarbons
  • allyl radical (noun)
    1. the univalent unsaturated organic radical C3H5; derived from propylene
  • azido radical (noun)
    1. the univalent group N3- derived from hydrazoic acid
  • azo radical (noun)
    1. the bivalent group -N=N- united to two hydrocarbon groups
  • benzoyl radical (noun)
    1. the univalent radical derived from benzoic acid
  • benzyl radical (noun)
    1. the univalent radical derived from toluene
  • cacodyl radical (noun)
    1. the univalent group derived from arsine
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Lychins floscuculi
Pronunciation:
Parts of Speech: noun
common perennial native to Europe and western Asia having usually pink flowers with ragged petals
radical cell