A nomad (Greek: νομάς, nomas, plural νομάδες, nomades; meaning one roaming about for pasture, pastoral tribe) is a member of a community of people who live in different locations, moving from one place to another.
no·mad • ˈnōˌmad/ • noun
a member of a people having no permanent abode, and who travel from place to place to find fresh pasture for their livestock.
a person who does not stay long in the same place; a wanderer.