<p><strong>Noun</strong></p><ul><li>A small, brimless close-fitting cap, often made of silk or velvet, worn on the crown of the head, especially for religious functions.</li><li>The domelike roof of the skull.</li><li>Botany: Any of various plants belonging to the genus <em>Scutellaria</em>, of the mint family, having a calyx resembling a helmet.</li></ul>