Shaped like the head of an arrow; cuneiform; cuneatic.(adjective)
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Use "arrowheaded" in a sentence
"She gave him a woodpecker's tongue, arrowheaded and barbed; an ox tongue, muscular, broad, and hung with drool; and, finally, the shy, happy tongue that the porpoise employs to push the waves to shore."
"The quills were very loosely set in, and every arrowheaded barb was as sharp as a needle."
"I sat and sipped my wine, thinking of the fate of cities, -- of Nineveh the renowned, of the marbles lately recovered from thence with the mysterious arrowheaded characters."