[tach.ism] n, often cap [F tachisme, fr. tache stain, spot, blob, fr. MF teche, tache, of Gmc origin; akin to OS tekan sign, OHG zeihhan--more at token] (1955): action painting -- tach.ist also ta.chiste adj or n, often cap
TACHISM
Meaning of TACHISM in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012