TAMBOUR, in Architecture, a term applied to the Corinthian and Composite capitals, as bearing some resemblance to a drum, which the French call tambour. Some choose to call it the vase, and others campana or the bell.

TAMBOUR is also used for a little box of timber-work, covered with a ceiling, within the porch of certain churches; both to prevent the view of persons passing by, and to keep off the wind, &c. by means of folding doors, &c.

TAMBOUR also denotes a round course of stone, several of which form the shaft of a column, not so high as a diameter.