a pointed projection
"The sharp prong of the pitchfork snagged on the fence post as she pulled it through the hay."
A thin, pointed, projecting part, as of an antler or a fork or similar tool. A tine.
"The elk's massive rack was covered in thick fur between each sharp prong."
To pierce or poke with, or as if with, a prong.
"The sharp end of the fork easily pierced the soft skin of the grapefruit without squishing it."