rare. [ad. L. quassātiōn-em, n. of action f. quassāre to shake: see QUASH v.] A shaking, beating, pounding.
1654. Gayton, Pleas. Notes, III. i. 68. Solidated by continual contusions, threshings, and quassations.
1683. Pettus, Fleta Min., II. 15. By quassation and constant compressure of such flexible grounds.
1897. Syd. Soc. Lex., Quassation,… in Pharmacy,… reducing roots and tough bark to pieces, to facilitate the extraction of their chief active principles.
