<p><strong>Noun</strong></p><ul><li>Lime 2 (def 1)</li><li>A small, brimless close-fitting cap, often made of silk or velvet, worn on the crown of the head, as for religious functions.</li><li>The domelike roof of the skull.</li><li>Any of various plants belonging to the genus Scutellaria, of the mint family, having a calyx resembling a helmet.</li></ul>