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Efficiency vs Null - What's the difference?

efficiency | null |

As nouns the difference between efficiency and null

is that efficiency is the extent to which time is well used for the intended task while null is zero, nil; the cardinal number before einn.

efficiency

English

Noun

  • The extent to which time is well used for the intended task.
    • The efficiency of the planning department is deplorable.
  • * {{quote-news
    • , year=2012 , date=September 7 , author=Phil McNulty , title=Moldova 0-5 England , work=BBC Sport citation , page= , passage=The display and result must be placed in the context that was it was against a side that looked every bit their Fifa world ranking of 141 - but England completed the job with efficiency to record their biggest away win in 19 years.}}
  • (dated) The quality of producing an effect or effects.
  • * Hooker
    • The manner of this divine efficiency being far above us.
  • The extent to which a resource, such as electricity, is used for the intended purpose; the ratio of useful work to energy expended.
    • The efficiency of this loudspeaker is 40%.
  • (United States) A one-room apartment.
    • I have an efficiency available June through July.
    fully-furnished efficiencies

    Antonyms

    * inefficiency * wastefulness

    Derived terms

    {{der3, energy efficiency , material efficiency , fuel efficiency , efficiency ratio , business efficiency , quantum efficiency , electrical efficiency , thermal efficiency , algorithmic efficiency , Pareto efficiency , allocative efficiency}}

    Related terms

    * effect * effective * effectiveness * effectivity * effector * effectual * effectuate * efficacious * efficacity * efficacy * efficient * efficiently

    Synonyms

    * effectiveness * (qualifier) bedsit

    null

    English

    Noun

    (en noun)
  • A non-existent or empty value or set of values.
  • Zero]] quantity of [[expression, expressions; nothing.
    • (Francis Bacon)
  • Something that has no force or meaning.
  • (computing) the ASCII or Unicode character (), represented by a zero value, that indicates no character and is sometimes used as a string terminator.
  • (computing) the attribute of an entity that has no valid value.
    • Since no date of birth was entered for the patient, his age is null .
  • One of the beads in nulled work.
  • (statistics) null hypothesis

    • Adjective

    (en adjective)
  • Having no validity, "null and void"
  • insignificant
  • * 1924 , Marcel Proust, Within a Budding Grove :
    • In proportion as we descend the social scale our snobbishness fastens on to mere nothings which are perhaps no more null than the distinctions observed by the aristocracy, but, being more obscure, more peculiar to the individual, take us more by surprise.
  • absent or non-existent
  • (mathematics) of the null set
  • (mathematics) of or comprising a value of precisely zero
  • (genetics, of a mutation) causing a complete loss of gene function, amorphic.

    • Derived terms

    * nullity

    Verb

    (en verb)
  • to nullify; to annul
    • (Milton)

    Related terms

    * annul

    See also

    * nil ----