<p><strong>Noun</strong></p><ul><li>Siliceous or calcareous matter deposited by springs, as that formed around the vent of a geyser.</li><li>Metallurgy: the product of a sintering operation.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) Metallurgy: to bring about agglomeration in (metal particles) by heating.</li></ul>