<p><strong>Verb</strong></p><ul><li>to unite or cause to adhere, as with glue.</li><li>(of two or more dissimilar substances) to clump or cause to clump, as bacteria or blood platelets.</li><li>to form by agglutination.</li></ul><p><strong>Adjective</strong></p><ul><li>united by or as by glue.</li><li>agglutinative.</li></ul>