From addition + -ist. <span class="searchmatch">additionist</span> (plural <span class="searchmatch">additionists</span>) (rare) One who supports or implements a policy of adding something. 1980, Journal of Eastern African...
<span class="searchmatch">additionists</span> plural of <span class="searchmatch">additionist</span>...
Journal of Eastern African Research and Development, page 50: They were <span class="searchmatch">additionists</span> in the sense that all they wanted was to add to their heritage 'pure'...
multiplication exponentiation tetration pentation hexation additional additionary <span class="searchmatch">additionist</span> addition polymerisation addition polymerization addition reaction addition...
acupuncturist adaptationist adaptionist addictionologist addictologist <span class="searchmatch">additionist</span> adeptist admonitionist adoptionist adragonist Adventist adventurist adverbialist...
acupuncturist adaptationist adaptionist addictionologist addictologist <span class="searchmatch">additionist</span> adeptist admonitionist adoptionist adragonist Adventist adventurist adverbialist...