bittering

== English == === Etymology === From bitter +‎ -ing. === Noun === bittering (plural bitterings) A bitter compound, such as that used in adulterating beer or that removed from coffee. The act of making or becoming bitter. ==== Synonyms ==== bittern === Adjective === bittering (not comparable) Causing a bitter taste or smell. a bittering agent in antifreeze === Verb === bittering present participle and gerund of bitter === Anagrams === Bittinger