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a.1.Shaped like the head of an arrow; cuneiform.
Arrowheaded characters
characters the elements of which consist of strokes resembling arrowheads, nailheads, or wedges; - hence called also nail-headed, wedge-formed, cuneiform, or cuneatic characters; the oldest written characters used in the country about the Tigris and Euphrates, and subsequently in Persia, and abounding among the ruins of Persepolis, Nineveh, and Babylon. See Cuneiform.
References in periodicals archive ?
agalactiae (group B streptococci) presented a synergistic hemolysis as seen by an arrowheaded area when tested on SBA and 3% washed-HuBA.
The CAMP test is used for identification of group B streptococci that secrete CAMP factor contributing to increased hemolysis in the arrowheaded area when grown near [beta]-toxin producing S.