atomic

See also: atòmic

English

Etymology

    From atom + -ic.

    Pronunciation

    • (Received Pronunciation) enPR: əˈtŏm.ĭk, IPA(key): /əˈtɒm.ɪk/
    • (General American) enPR: əˈtä.mĭk, IPA(key): /əˈtɑː.mɪk/
    • Audio (US):(file)
    • (Australia) enPR: əˈtŏm.ĭk, IPA(key): /əˈtɔm.ɪk/
    • Rhymes: -ɒmɪk

    Adjective

    atomic (not comparable)

    1. (physics, chemistry) Of or relating to atoms; composed of atoms; monatomic.
      Antonym: molecular
      A stream of atomic hydrogen is emitted.
    2. Employing or relating to nuclear energy or processes.
      atomic energy; atomic bombs
      Some nutjob once built a small atomic pile in his back yard.
      1. (colloquial, by extension) Very strong and overpowering.
        Synonym: nuclear
      • 1955, David J. Dallin, Soviet Espionage, page 495:
        Before the atomic spy Allan Nunn May left Canada to go to London, a treff in London had to be arranged for him and another agent.
    3. Infinitesimally small.
      The hairs on a dust mite are almost atomic.
    4. Unable to be split or made any smaller.
      Synonyms: discrete, indivisible, unatomizable
      A bit is an atomic item of data.
      1. (programming, of a commit in a VCS) Containing a single change, as opposed to involving numerous unrelated changes.
      2. (logic, of a proposition) Lacking logical operators; unable to be made simpler in logical form.
      3. (order theory, of a partially ordered set with a least element 0) Such that for every element b>0 there exists an atom a such that b≥a>0.
    5. (computing, of an operation) Guaranteed to complete either fully or not at all while waiting in a pause, and running synchronously when called by multiple asynchronous threads.
      In order to avoid race conditions, this operation has to be atomic.
      Whenever possible, use atomic types instead of mutexes.
      • 2006, Tim Peierls, Brian Goetz, Joshua Bloch, Joseph Bowbeer, Doug Lea, David Holmes, Java Concurrency in Practice, Pearson Education, →ISBN, page 325:
        It also provides an atomic compareAndSet method (which if successful has the memory effects of both reading and writing a volatile variable) and, for convenience, atomic add, increment, and decrement methods.

    Derived terms

    Translations

    The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

    Noun

    atomic (plural atomics)

    1. (computing) An atomic operation.

    References

    Anagrams

    Occitan

    Pronunciation

    Adjective

    atomic m (feminine singular atomica, masculine plural atomics, feminine plural atomicas)

    1. atomic

    Romanian

    Etymology

      Borrowed from French atomique. By surface analysis, atom + -ic.

      Adjective

      atomic m or n (feminine singular atomică, masculine plural atomici, feminine/neuter plural atomice)

      1. atomic

      Declension

      Declension of atomic
      singular plural
      masculine neuter feminine masculine neuter feminine
      nominative-
      accusative
      indefinite atomic atomică atomici atomice
      definite atomicul atomica atomicii atomicele
      genitive-
      dative
      indefinite atomic atomice atomici atomice
      definite atomicului atomicei atomicilor atomicelor