Scab
A strikebreaker (a bit obvious) or a scab.
When you get a cut, it fresh. Few days later it drys. Then what you call a (scab) is dead skin.
No, a scab is a dry, rough protective crust that forms over a healing wound on the skin. It is not related to a person returning from a country they emigrated from.
a kufuzelanter
scab
a scab
clot
The way to heal a scab on the scalp of a person's head depends on the size, and what caused the injury. A smaller scab could be healed by using peroxide. A large scab may need to be looked at by a doctor to determine the best treatment.
a person who works during a strike
A scab.
It is not illegal to call someone a scab, as it is considered a derogatory term for someone who continues to work while others are on strike. However, it may be considered offensive or disrespectful in certain contexts.