Those LUMPS are called CHESTNUTS and all horses have them. They are made of the same matierial as your fingernails. On some horses they grow rapidly and often have to be trimmed. This is painless and easily done with a pair of wire snips or tin snips.
It's probably just a blemish, but its name will vary depending on its exact location and makeup.
the frog
Horses are one toed animals. They have one toe on each foot (which is there hoof) and one thumb (which is a chestnut, a bone lump that is half way up there leg).
The lump is called a "burl."
A lump of clay is called a CLOD
The lump on your neck on the inside of the jaw could be an infection. It is important that you seek medical attention ASAP.
A lump of clay is called a CLOD
A lump of energy associated with light is called a quantum. Another lump of energy associated with light is also called a photon.
Is worth two in the bush!
a testicle
blood located inside your veins.
A burning lump of coal is called Ember
It can be called a bulge.
A clod