Toothlike structures on the skin on sharks, skates and rays.
'Tooth-like'. Serrations found on some dinosaur teeth. Also describes the tiny tooth-like structures in shark skin
Tiny tooth-like plates creating a protective and abrasive surface on the skin.
Sharp bumps around the inside of the rim of a coin. They are used to make counterfeiting more difficult.
small tooth like raised areas around the edge of a coin. Particularly on older coins. Often found all around the front (obverse) and back (reverse) of the coin, right next to the edge.
Tooth like raised features just inside the rim of some coins (also known as dentils)
Tooth-like raised features near the rim of a coin.
The toothlike projections which make up the inner rim on some coins. They were discontinued on most United States coins in the early twentieth century.
or dentils - The toothlike raised design around the rims of some coins. They are part of the die design.
The tooth-like projections which make up the inner rim on some coins. They were discontinued on most U.S. coins in the early twentieth century.
The tooth-like devices around the rim seen on many coins. Originally these are somewhat irregular, later much more uniform - the result of better preparatory and striking machinery.
