What does itinerant mean?

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From our dictionary:

i•tin•er•ant

Pronunciation: (I-tin'ur-unt, i-tin'-), [key]
adj.
1. traveling from place to place, esp. on a circuit, as a minister, judge, or sales representative; itinerating; journeying.
2. characterized by such traveling: itinerant preaching.
3. working in one place for a comparatively short time and then moving on to work in another place, usually as a physical or outdoor laborer; characterized by alternating periods of working and wandering: an itinerant farm hand.

n.
1. a person who alternates between working and wandering.
2. a person who travels from place to place, esp. for duty or business.