orbital: Meaning and Definition of

or•bit•al

Pronunciation: (ôr'bi-tl), [key]
— adj.
  1. of or pertaining to an orbit.
—n.
    1. a wave function describing the state of a single electron in an atom(atomic orbital)or in a molecule(molecular orbital).
    2. the electron in that state.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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