4. (Fort.) A work usually in the form of a redan, to inclose a space
before a door or staircase, or at the gorge of a larger work. It is
arranged like a stockade.
5. (Physiol.) A shallow metallic cup or drum, with a thin elastic
membrane supporting a writing lever. Two or more of these are connected
by an India rubber tube, and used to transmit and register the
movements of the pulse or of any pulsating artery.
Tam"bour, v. t. [imp. & p. p. Tamboured (?); p. pr. & vb. n.
Tambouring.] To embroider on a tambour.