What is Incudal?

Incudal definition and meaning on Dictionary terms:
noun, plural inA.cuA.des [in-kyoo-deez] /EanE?kyua??diz/ for 1; inA.cus for 2.
Anatomy. the middle one of a chain of three small bones in the middle ear of humans and other mammals.Compare malleus, stapes.
Also called anvil, anvil cloud, anvil top, thunderhead. the spreading, anvil-shaped, upper portion of a mature cumulonimbus cloud, smooth or slightly fibrous in appearance.