0%

antiknock

an·ti·knock
A a

Transcription

    • US Pronunciation
    • US IPA
    • UK Pronunciation
    • UK IPA
    • [an-tee-nok, an-tahy-, an-tee-nok, an-tahy-]
    • /ˌæn tiˈnɒk, ˌæn taɪ-, ˈæn tiˌnɒk, ˈæn taɪ-/
    • /ˌæn.tiˈnɒk/
    • US Pronunciation
    • US IPA
    • [an-tee-nok, an-tahy-, an-tee-nok, an-tahy-]
    • /ˌæn tiˈnɒk, ˌæn taɪ-, ˈæn tiˌnɒk, ˈæn taɪ-/

Definitions of antiknock word

  • noun antiknock a compound, such as lead tetraethyl, added to petrol to reduce knocking in the engine 3
  • noun antiknock a substance added to the fuel of internal-combustion engines to reduce or eliminate explosive noise resulting from too rapid combustion 3
  • adjective antiknock noting or pertaining to a substance, as tetraethyllead or ferrocene, used as a fuel additive for an internal-combustion engine to eliminate or minimize knock. 1
  • noun antiknock such a substance added to fuel in an internal-combustion engine. 1
  • noun antiknock A substance (such as tetraethyl lead) added to gasoline to inhibit preignition. 1
  • noun antiknock Such a substance, usually tetraethyl lead (also MMT, MTBE and ethanol). 0
See all 7 definitions of antiknock

Information block about the term

Origin of antiknock

First appearance:

before 1920
One of the 12% newest English words
First recorded in 1920-25; anti- + knock

Historical Comparancy

Parts of speech for Antiknock

noun
adjective
verb
adverb
pronoun
preposition
conjunction
determiner
exclamation
Full grammatical hierarchy of Antiknock

antiknock popularity

A pretty common term. Usually people know it’s meaning, but prefer to use a more spread out synonym. About 69% of English native speakers know the meaning and use word.
According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

antiknock usage trend in Literature

This diagram is provided by Google Ngram Viewer

Related words

  • octane number

    (of gasoline) a designation of antiknock quality, numerically equal to the percentage of isooctane by volume in a mixture of isooctane and normal heptane that matches the given gasoline in antiknock characteristics.

  • bromine

    a pungent dark red volatile liquid element of the halogen series that occurs in natural brine and is used in the production of chemicals, esp ethylene dibromide. Symbol: Br; atomic no: 35; atomic wt: 79.904; valency: 1, 3, 5, or 7; relative density 3.12; density (gas): 7.59 kg/m3; melting pt: –7.2°C; boiling pt: 58.78°C

  • ethyl

    (organic chemistry) The univalent hydrocarbon radical, C2H5, formally derived from ethane by the loss of a hydrogen atom.

  • ferrocene

    Also called dicyclopentadienyliron. an orange, crystalline, water-insoluble coordination compound, (C 5 H 5) 2 Fe, having a camphorlike odor: used chiefly as an antiknock agent for gasoline and as a catalyst. Compare metallocene.

  • no-knock

    antiknock.

  • tetraethyllead

    a colorless, oily, water-insoluble, poisonous liquid, (C 2 H 5) 4 Pb, used as an antiknock agent in gasoline.
All related words to antiknock

See also

Matching words

Was this page helpful?
Yes No
Thank you for your feedback! Tell your friends about this page
Tell us why?