Bohr-Sommerfeld theory

Bohr-Sommerfeld theory

[¦bȯr ‚zō·mər‚felt ‚thē·ə·rē]
(atomic physics)
A modification of the Bohr theory in which elliptical as well as circular orbits are allowed.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.