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Density vs Null - What's the difference?

density | null |

As nouns the difference between density and null

is that density is (physics: amount of matter contained by a given volume) A measure of the amount of matter contained by a given volume while null is a non-existent or empty value or set of values.

As an adjective null is

having no validity, "null and void.

As a verb null is

to nullify; to annul.

density

Noun

(densities)
  • (physics) A measure of the amount of matter contained by a given volume.
  • * {{quote-magazine, year=2013, month=May-June, author=Kevin Heng
  • , title= Why Does Nature Form Exoplanets Easily? , volume=101, issue=3, page=184, magazine=(American Scientist) , passage=In the past two years, NASA’s Kepler Space Telescope has located nearly 3,000 exoplanet candidates ranging from sub-Earth-sized minions to gas giants that dwarf our own Jupiter. Their densities range from that of styrofoam to iron.}}
  • (senseid)The ratio of one quantity to that of another quantity.
  • (senseid)The probability that an event will occur, as a function of some observed variable.
  • Derived terms

    * charge density * energy density * electron density * freight density

    Anagrams

    *

    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 ----