washback

== English == === Etymology 1 === From wash +‎ back. ==== Noun ==== washback (uncountable) (linguistics) The way that tests affect how learners acquire and use a language. Synonym: backwash ===== Derived terms ===== === Etymology 2 === From wash +‎ back. See back (“a large shallow vat”). ==== Noun ==== washback (plural washbacks) A large vessel used for fermentation in a distillery. === Anagrams === back wash, backwash