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Definitions of molecule
  1. noun
    (nontechnical usage) a tiny piece of anything
    type of:
  2. noun
    (physics and chemistry) the simplest structural unit of an element or compound
    type of:
Definition that contains molecule
  • free unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion
  • group (chemistry) two or more atoms bound together as a single unit and forming part of a molecule
  • ring (chemistry) a chain of atoms in a molecule that forms a closed loop
  • excited (of e.g. a molecule) made reactive or more reactive
  • sugar an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain
  • crack break into simpler molecules by means of heat
  • chain (chemistry) a series of linked atoms (generally in an organic molecule)
  • chemical material produced by or used in a reaction involving changes in atoms or molecules
  • transport an exchange of molecules (and their kinetic energy and momentum) across the boundary between adjacent layers of a fluid or across cell membranes
  • label distinguish (as a compound or molecule) by introducing a labeled atom
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