migration

Noun
  1. The movement of persons from one country or locality to another (synset 101125416)
    is a type of: motion, move, movement - the act of changing location from one place to another
    subtypes:
    • emigration, expatriation, out-migration - migration from a place (especially migration from your native country in order to settle in another)
    • immigration, in-migration - migration into a place (especially migration to a country of which you are not a native in order to settle there)
    • gold rush - a large migration of people to a newly discovered gold field
  2. A group of people migrating together (especially in some given time period) (synset 107983035)
    is a type of: people - (plural) any group of human beings (men or women or children) collectively
  3. (chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule (synset 107327429)
    referred to in: chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
    is a type of: event - something that happens at a given place and time
  4. The periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding (synset 107327216)
    is a type of: periodic event, recurrent event - an event that recurs at intervals

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