a heraldic symbol in the form of an arrow that has two spikes which are serrated along the inner edge
The broad arrow symbol, or pheon, appeared on all government property.
pheon in American English
(ˈfiɑn)
noun
Heraldry
a charge representing an arrowhead with widely spread barbs
Also called: broad arrow
Word origin
[1480–90; earlier feon, of uncert. orig.]This word is first recorded in the period 1480–90. Other words that entered Englishat around the same time include: absorb, marker, retard, rig, surge