<p><strong>Noun:</strong></p><ul><li>A piece of cloth or other absorbent material folded and worn as underpants by a baby not yet toilet-trained. Also called diaper cloth.</li><li>A linen or cotton fabric with a woven pattern of small, constantly repeated figures, as diamonds. Also called diaper pattern.</li><li>Such a pattern, originally used in the Middle Ages in weaving silk and gold.</li></ul><p><strong>Verb:</strong></p><ul><li>(used with object) To put a diaper on.</li><li>To ornament with a diaperlike pattern.</li></ul>