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Sludge vs Null - What's the difference?

sludge | null |

As an initialism sludge

is (emergency medicine) a mnemonic ("salivation, lacrimation, urination, defecation, gastrointestinal upset, emesis") used to identify the common symptoms of certain affections of a cholinergic toxidrome.

As a noun null is

zero, nil; the cardinal number before einn.

sludge

English

(wikipedia sludge)

Noun

  • A generic term for solids separated from suspension in a liquid.
  • * {{quote-magazine, date=2013-06-29, volume=407, issue=8842, page=28, magazine=(The Economist)
  • , title= High and wet , passage=Floods in northern India, mostly in the small state of Uttarakhand, have wrought disaster on an enormous scale.
  • A residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.
  • A sediment of accumulated minerals in a steam boiler.
  • A mass of small pieces of ice on the surface of a body of water.
  • (uncountable, music) sludge metal
  • Synonyms

    * (separated solids) mud, mire, ooze, slush

    Derived terms

    * activated sludge * oil sludge * sludge metal * sludgecore

    Verb

    (sludg)
  • (informal) to slump or slouch.
  • to slop or drip slowly.
  • 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)

    See also

    * nil ----