<p><strong>Noun</strong></p><ul><li>the head or tip of an arrow, usually separable from the shaft and conventionally wedge-shaped.</li><li>anything resembling or having the conventional shape of an arrowhead.</li><li>also called swamp potato: any aquatic or bog plant of the genus Sagittaria, having usually arrowhead-shaped leaves and clusters of white flowers.</li><li>any of several other plants having arrowhead-shaped leaves.</li><li>the dartlike form in an egg-and-dart ornament.</li></ul>