Microphone

Microphone, an instrument invented in 1878 by Professor Hughes, and consisting of charcoal tempered in mercury, which intensifies and renders audible the faintest possible sound.

Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)

Microcosm * Microzyme
Michaelis, Johann David
Michaelmas
Michel, Francesque
Michelet, Jules
Michigan
Michigan, Lake
Mickiewicz, Adam
Mickle, William Julius
Microbe
Microcosm
Microphone
Microzyme
Midas
Middle Ages
Middle English
Middle Passage
Middlesbrough
Middlesex
Middleton, Conyers
Middleton, Thomas
Midgard