action intended to nullify the effects of some previous action | English orthography used in Australia (characterized by 'analyse', 'centre', 'usable') |
action intended to keep a country politically neutral or exclude it from a possible war | |
(euphemism) the removal of a threat by killing or destroying it (especially in a covert operation or military operation) | |
a chemical reaction in which an acid and a base interact with the formation of a salt; with strong acids and bases the essential reaction is the combination of hydrogen ions with hydroxyl ions to form water | |