crossed-h

crossed-h

(ˌkrɒstˈaɪtʃ)
n
(General Physics) a constant used in quantum mechanics, equal to the Planck constant divided by 2π. It has a value of 1.054571596±0.000000078 × 10 −34 joule seconds. Also called: Dirac constant
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014