Nautiloid :: Nautiloid (a.) Like or pertaining to the nautilus; shaped like a nautilus shell.
Nautiloid :: Nautiloid (n.) A mollusk, or shell, of the genus Nautilus or family Nautilidae..
Nautilus :: Nautilus (n.) The only existing genus of tetrabranchiate cephalopods. About four species are found living in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a continuous and nearly central tube or siphuncle. See Tetrabranchiata..
Nautilus :: Nautilus (n.) The argonaut; -- also called paper nautilus. See Argonauta, and Paper nautilus, under Paper..
Nautilus :: Nautilus (n.) A variety of diving bell, the lateral as well as vertical motions of which are controlled, by the occupants..
Phonautograph :: Phonautograph (n.) An instrument by means of which a sound can be made to produce a visible trace or record of itself. It consists essentially of a resonant vessel, usually of paraboloidal form, closed at one end by a flexible membrane. A stylus attached to some point of the membrane records the movements of the latter, as it vibrates, upon a moving cylinder or plate..
Unauthorize :: Unauthorize (v. t.) To disown the authority of; to repudiate.