Perhaps it is/comes from one of these:
Demonic Style
Angelic Manner
Inaris Beads
Platypus
They are called gills!
The slits are simply called arrow slits or occasionally Balistraria. Sometimes the arrow slits are looking out of embrasures. Arrow slits were useful for protecting the castle as they were easy to fire out of but very, very hard to fire into. To find out more about embrasures click on the link below. "Wikipedia.org: Embrasure" To find out more about arrow slits click on the other link below. "Wikipedia.org: Arrow slits".
The openings in the throat region of a fish that lead to the gill chamber are called gill slits. These slits allow water to flow over the gills so that oxygen can be absorbed and carbon dioxide can be released.
Whales have abdominal mammary slits, which conceal nipples from which a calf suckle.
The Slits ended in 1982.
The Slits was created in 1976.
by the gill slits
it means slits it means slits
Chordates are the organisms that have a rod like cartilagenous structure called notochord which gives rise to nervous system. These have pharyngeal gill slits. Nonchordates are the organisms that do not have a notochord. These do not have pharyngeal gill slits.
A leopard shark has five gill slits on either side of its body. The gill slits are on the sides of the shark's head.
The mechanism you are referring to is called the double-slit interference pattern. When light passes through two closely spaced narrow slits, it interferes with itself, creating alternating bright and dark bands on a screen behind the slits due to constructive and destructive interference of the light waves.
Return of the Giant Slits was created in 1981.