Royal Engineers are colloquially known as "wedge heads" due to the triangular shape of their cap badges, which resemble a wedge. This nickname reflects both the distinctive design of their insignia and a playful camaraderie among military personnel. The term is often used in a lighthearted manner to highlight the unique identity of the Royal Engineers within the British Army.
A miner's wedge is called a Gad
4 valve sohc/dohc heads and hemi heads are both cross flow heads. It is because the intake valve is across from the exhaust veruses inline as with regular 2 valve wedge heads.
One of several wedge shaped peninsulas around the world is called the Istrian Peninsula.
A wedge shaped portion of a circle is called a sector.
gad
The potato wedge originated in Ohio, United States, where it was originally called jojos.
the wedge shaped writing system is called cuneiform.
Wedge
It is called a wedge.
a wedge
Leader
cuneiform