tambour (tam|bour)

noun

• 1 historical a small drum.

• 2a circular frame for holding fabric taut while it is being embroidered.

• 3 Architecture a wall of circular plan, such as one supporting a dome or surrounded by a colonnade.
• each of a sequence of cylindrical stones forming the shaft of a column.

• 4a lobby enclosed by a ceiling and folding doors to prevent draughts, typically within a church porch.
• [usually as modifier] a sliding flexible shutter or door on a piece of furniture: a tambour door

• 5a sloping buttress or projection in a real tennis or fives court.

verb

• decorate or embroider on a tambour: a tamboured waistcoat