| Arrowhead 1. (n.) The head of an arrow. 2. (n.) An aquatic plant of the genus Sagittaria, esp. S. sagittifolia, -- named from the shape of the leaves. Thesaurus Entries antelope, arrowhead, barb, blaze, blue darter, blue streak, bobtailed arrow, bolt, cannonball, chested arrow, cloth yard shaft, compass needle, courser, dart, direction, direction post, eagle, electricity, express train, finger post, fist, flash, flight, gazelle, greased lightning, greyhound, guide, guideboard, guidepost, hand, hare, hour hand, index, index finger, jet plane, lead, light, lightning, lubber line, mercury, milepost, minute hand, needle, pointer, quarrel, quicksilver, reed, rocket, scared rabbit, shaft, shot, signboard, signpost, streak, streak of lightning, striped snake, swallow, thought, thunderbolt, torrent, volley, wind | ![]() |