Meaning of tusche

tusch•e

Pronunciation: (toosh Ger. toosh&prim&schwa), [key]
— n.
  1. a greaselike liquid used in lithography as a medium receptive to lithographic ink, and in etching and silkscreen as a resist.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.