peripatetic

Concise Oxford English Dictionary © 2008 Oxford University Press:
peripatetic /ˌpɛrɪpəˈtɛtɪk/

▶adjective

• 1 travelling from place to place.

  ■ working or based in a succession of places each for a short period.

  ■ (of a teacher) working in more than one school or college.

• 2 (Peripatetic) Aristotelian.

  ■ [with ref. to Aristotle's practice of walking to and fro while teaching.]

▶noun

• 1 a peripatetic teacher.

• 2 (Peripatetic) an Aristotelian philosopher.

– derivatives
peripatetically adverb,
peripateticism noun.

– origin ME: from OFr. peripatetique, via L. from Gk peripatētikos ‘walking up and down’.