Millikan oil-drop experiment(redirected from Oil-drop experiment)
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Millikan oil-drop experiment[′mil·ə·kən ′ȯil‚dräp ik‚sper·əmənt]
A method of determining the charge on an electron, in which one measures the terminal velocities of rise and fall of oil droplets in an electric field after the droplets have picked up charge from ionization in the surrounding gas produced by an x-ray beam.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.