TONTINE INSURANCE n.
e tontine principle. Under the old, or full tontine, plan, all benefits were forfeited on lapsed policies, on the policies of those who died within the tontine period only the face of the policy was paid without any share of the surplus, and the survivor at the end of the tontine period received the entire surplus. Thi…
ULTRAMARINE n.
A blue pigment formerly obtained by powdering lapis lazuli, but now produced in large quantities by fusing together silica, alumina, soda, and sulphur, thus forming a glass, colored blue by the sodium polysulphides made in the fusion. Also used adjectively. Green ultramarine, a green pigment obtained as a first product…
VALVE n.
One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or retard the flow in the opposite direction; as, the ileocolic, mitral, and semilunar valves.
VENETIAN a.
a certain angle in the shutter, or movable, and in the latter case so disposed as to overlap each other when close, and to show a series of open spaces for the admission of air and light when in other positions. -- Venetian carpet, an inexpensive carpet, used for passages and stairs, having a woolen warp which concea…