atomic

a-tom-ic · adjective

imported

Definitions

adjective

  1. 1.

    Of or relating to atoms.

  2. 2.

    Of or relating to nuclear energy or nuclear weapons.

  3. 3.

    Extremely small or precise.

Phrases & expressions

  • •
    atomic bomb — A nuclear weapon deriving energy from fission.
  • •
    atomic clock — An extremely precise clock using atomic vibrations.
  • •
    atomic number — The number of protons in an atom's nucleus.
  • •
    atomic weight — The average mass of an element's atoms.

Related words

See also: atom, atoms, nuclear
Synonyms: molecular, nuclear

Etymology

From Modern Latin atomicus, from Latin atomus, from Greek atomos ("indivisible").