tambour
noun
[ ˈtambʊə ]
• a small drum.
• a circular frame for holding fabric taut while it is being embroidered.
• a wall of circular plan, such as one supporting a dome or surrounded by a colonnade.
• a lobby enclosed by a ceiling and folding doors to prevent draughts, typically within a church porch.
• a sloping buttress or projection in a real tennis or fives court.
Origin:
late 15th century: from French tambour ‘drum’; perhaps related to Persian tabīra ‘drum’. Compare with tabor.