<p><strong>Noun</strong></p><ul><li>Also called rime ice.</li><li>an opaque coating of tiny, white, granular ice particles, caused by the rapid freezing of supercooled water droplets on impact with an object.</li></ul><p><strong>Verb</strong></p><ul><li>(used with object) rimed, riming.</li><li>to cover with rime or hoarfrost.</li></ul>