Vicat needle(redirected from L.J. Vicat)
Also found in: Medical.
Vicat needle[vē′kä ‚nēd·əl]
An apparatus used to determine the setting time of cement by measuring the pressure of a special needle against the cement surface.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.