Definition of: exposition

(eks′pə·zish′ən) noun
1. A public exhibition of the arts, products, achievements, etc., of a specific region, country, or group, as a world's fair.
2. An explanation; commentary.
3. Rhetorical analysis.
4. The part of a dramatic composition that unfolds the plot.
5. In the Roman Catholic Church, a service in which the blessed sacrament is exposed for adoration.
6. Music The initial presentation or statement of the themes of a movement; especially, in a fugue, the introduction of the several parts or voices. See synonyms under DEFINITION. [<OF <L expositio, -onis <ex-ponere. See EXPONENT.]