cove

1. A depression or recess in a ceiling, often forming a horizontal FOH theatrical lighting position. Vertical openings are usually called slots. May also be purely decorative, and not contain any ERSs.

3D Theater Design - Pricing

2. A type of molding containing an inside curve.

Big Johnson Millwork Cove Molding page

3. The router or shaper bit used for making a cove.

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