Definition of sinistration in English:

sinistration

Pronunciation /ˌsɪnɪˈstreɪʃn/

noun

rare
  • 1The condition or property of being sinistral.

  • 2The action of moving or turning to the left.

Origin

Mid 19th century (in an earlier sense). Partly (i) from post-classical Latin sinistration-, sinistratio action of moving or turning to the left from sinistrat-, past participial stem of sinistrare to go on the left hand, to oppose, prevent, (of fortune) to be adverse + classical Latin -iō.