marginal dimensionality

marginal dimensionality

[′mär·jən·əl di‚men·shə′nal·əd·ē]
(statistical mechanics)
The largest number of spatial dimensions for which nonlinear effects are important in calculating the behavior of a substance near a critical point.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.