CONDENSER n.
condenser, or Bull's-eye (Optics), a lens of short focal distance used for concentrating rays of light. -- Injection condenser, a vessel in which steam is condensed by the direct contact of water. -- Surface condenser, an apparatus for condensing steam, especially the exhaust of a steam engine, by bringing it into c…
CONE n.
A shell of the genus Conus, having a conical form. Cone of rays (Opt.), the pencil of rays of light which proceed from a radiant point to a given surface, as that of a lens, or conversely. -- Cone pulley. See in the Vocabulary. -- Oblique or Scalene cone, a cone of which the axis is inclined to the plane of its base.…