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Radar vs Null - What's the difference?

radar | null |

As an acronym radar

is .

As a noun null is

zero, nil; the cardinal number before einn.

radar

English

(wikipedia radar)

Noun

  • (uncountable) A method of detecting distant objects and determining their position, velocity, or other characteristics by analysis of sent radio waves (usually microwaves) reflected from their surfaces
  • (countable) A type of system using such method, differentiated by platform, configuration, frequency, power, and other technical attributes.
  • (countable) An installation of such a system or of the transmitting and receiving apparatus.
  • (countable, figuratively) A superior ability to detect something.
  • His sensitive radar for hidden alliances keeps him out of trouble.

    Synonyms

    * RADAR (acronym of radio detection and ranging)

    Derived terms

    * -dar * gaydar * Jewdar * monopulse radar * off the radar * passive radar * radar astronomy * radar dome * radar gun * radar meteorology * radar reflector * radar telescope * radar trap * radome * under the radar

    Verb

    (en verb)
  • To scan with , or as if with radar.
  • * {{quote-book, year=2002, author=Brian Jonathan Wolk, title=Ohio Traffic Tickets are for the Birds citation
  • , passage= He radars you while he's sitting in his patrol vehicle under a bridge.}} English invariant nouns English palindromes ----

    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 ----