Leidenfrost's phenomenon

Leidenfrost's phenomenon

[′līd·ən‚frȯsts fə‚nam·ə‚nän]
(thermodynamics)
A phenomenon in which a liquid dropped on a surface that is above a critical temperature becomes insulated from the surface by a layer of vapor, and does not wet the surface as a result.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.