INCANDESCENT a.
t (Elec.), a kind of lamp in which the light is produced by a thin filament of conducting material, usually carbon, contained in a vacuum, and heated to incandescence by an electric current, as in the Edison lamp; -- called also incandescence lamp, and glowlamp.
INCENSE n.
The materials used for the purpose of producing a perfume when burned, as fragrant gums, spices, frankincense, etc. Nadab and Abihu, the sons of Aaron, took either of them his censer, and put fire therein, and put incense thereon. Lev. x. 1.
INDIGO a.
go blue in color. Called also indigo bunting. -- Indigo blue. (a) The essential coloring material of commercial indigo, from which it is obtained as a dark blue earthy powder, with a reddish luster, C16H10N2O2, which may be crystallized by sublimation. Indigo blue is also made from artificial amido cinnamic acid, and…
INFUSORIAL a.
, infusorial earth. Infusorial earth (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of the shells of the microscopic plants called diatoms. It is used in polishing powder, and in the manufacture of dynamite.