exhibitor

Concise Oxford English Dictionary © 2008 Oxford University Press:
exhibit /ɪgˈzɪbɪt, ɛg-/

▶verb

• 1 publicly display (an item) in an art gallery or museum.

• 2 manifest (a quality or type of behaviour).

  ■ show as a sign or symptom.

▶noun

• 1 an object or collection of objects on display in an art gallery or museum.

  ■ N. Amer. an exhibition.

• 2 Law a document or other object produced in a court as evidence.

– derivatives
exhibitor noun.

– origin ME: from L. exhibit-, exhibere ‘hold out’.