lieberkuhn
Lie"ber*kühn, n. Etym: [Named after a German physician and instrument maker, J. n. Lieberkühn.] (Optics) Defn: A concave metallic mirror attached to the object-glass end of a microscope, to throw down light on opaque objects; a reflector.
Lie"ber*kühn, n. Etym: [Named after a German physician and instrument maker, J. n. Lieberkühn.] (Optics) Defn: A concave metallic mirror attached to the object-glass end of a microscope, to throw down light on opaque objects; a reflector.