Wandering peoples are called nomads.
Nomadic.
A nomad or nomads describes a person or group who moves from place to place as they follow the migrations of animals and development of ripening fruit. These people are called "hunters and gatherers" when studying transitions from Stone Age to other ancient societies.
A nomad is someone who moves from place to place.
Someone who moves from place to place with no permanent residence is called a drifter.
The electric current
Erosion
A person that moves around a lot may be called a "nomad." This is from Nomadic tribes that used to travel from place to place following their food.
A nomad is a person who moves around from place to place and has no home. So a nomadic tribe is a group of people that travel from place to place without a permanent residence.
A group of marchers carrying signs in front of a place is called either a protest, protesters, or picketers.
Convection
They are called waves.
A migrant worker moves from place to place to get work. A nomad is someone who moves from place to place.