/ˈædɪtəɹi/, /ˈædɪtɹi/ (US) IPA(key): /ˈædɪˌtɔɹi/ <span class="searchmatch">additory</span> (comparative more <span class="searchmatch">additory</span>, superlative most <span class="searchmatch">additory</span>) (rare) Tending to add; making some addition...