<p><strong>Noun</strong></p><ul><li>a person or thing that classifies.</li><li>a device for separating solids of different characteristics by controlled rates of settling.</li><li>Grammar: (in Chinese, Japanese, and other languages) a word or morpheme that corresponds to a semantic class of nouns and regularly accompanies any noun of that class in certain syntactic constructions, such as those of numeration.</li></ul>