tachism /ˈtaˌSHizəm, ˈtæˌʃɪzəm 
/ (also tachisme) ▸ noun a style of painting adopted by some French artists from the 1940s, involving the use of dabs or splotches of color, similar in aims to abstract expressionism.
– ORIGIN 1950s : from French tachisme, from tache ‘a stain’.
EnglishOxford New American Dictionary
