from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Made up of two atoms: a diatomic molecule.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Consisting of two atoms.
  • n. A diatomic molecule or other species

from the GNU version of the Collaborative International Dictionary of English

  • adj. Containing two atoms.
  • adj. Having two replaceable atoms or radicals.

from The Century Dictionary and Cyclopedia

  • In chem., consisting of two atoms: as, a diatomic radical: specifically applied to hydrates which have two hydrogen atoms united to the nucleus radical by oxygen. It is these hydrogen atoms alone which are easily replaced by metallic bases or other radicals.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • adj. of or relating to a molecule made up of two atoms


Sorry, no etymologies found.


  • Even the structure of a diatomic molecule like O2 is not an existant thing … in other words, the structure (shape) of it does not exist in addition to the two oxygen atoms.

    Against Darwinism

  • Mononuclear diatomic gases don't have the broken symmetry that would be required for such quantized states.

    Hansen: Obama has only four years to save the world - NASA Watch

  • Their molecules are diatomic, and as such they aren't capable of achieving the quantized vibrational, rotational or rovibrational states responsible for absorption and emission of thermal radiation.

    Hansen: Obama has only four years to save the world - NASA Watch

  • Here are a few words about Andromeda from the designer: Emerging from the concept of Netification; the reduction of physical mass through selective perforation across a pre defined form; the concept floats more as a diatomic sea creature in the free ocean of space.

    Lamp in a Bulb

  • In my theory there is no byproduct - nature oscillates between the desired diatomic state and molecular disassociation when the new high mobility molecule finds its covalent bond opposed by the individual atoms still trying to transition to different fractional states (relativistic).

    Will 2010 be the Year of Zero Point Energy?

  • Nature's desire for the diatomic state is opposed by dihydrinos caught in a changing Casimir depletion field.

    Will 2010 be the Year of Zero Point Energy?

  • In particular, argon is the cheapest alternative when diatomic nitrogen is not sufficiently inert.


  • Jets spewing from the comet's nucleus contain cyanogen (CN: a poisonous gas found in many comets) and diatomic carbon (C2).

    Green Comet Approaches Earth

  • Because hydrogen molecules are composed of two atoms, they are called diatomic.


  • That is how the flame from the torch reacts differently with different substrates because it is not diatomic molecules being burnt to create heat it is atoms of Oxygen and Hydrogen reacting with the substrate producing different temperatures and energies for different sub straight materials.

    Thinking About America


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