<p><strong>Noun</strong></p><ul><li>The hard, variously colored, calcareous skeleton secreted by certain marine polyps.</li><li>Such skeletons collectively, forming reefs, islands, etc.</li><li>The solitary or colonial polyp that secretes this calcareous skeleton.</li><li>A reddish yellow; light yellowish red; pinkish yellow.</li><li>The unimpregnated roe or eggs of the lobster that when boiled take on the color of red coral.</li><li>Something made of coral, as an ornament, piece of jewelry, or a child's toy.</li></ul><p><strong>Adjective</strong></p><ul><li>Made of coral: a coral reef; coral ornamentation.</li><li>Making coral: a coral polyp.</li><li>Resembling coral, especially in color; yellowish-red.</li></ul>