Brachystochrone
Pronunciation : Bra*chys"to*chrone
Part of Speech : n.
Etymology : [Incorrect for brachistochrone, fr. Gr. brachistochrone. ] (Math.)
Definition : Defn: A curve, in which a body, starting from a given point, and descending solely by the force of gravity, will reach another given point in a shorter time than it could by any other path. This curve of quickest descent, as it is sometimes called, is, in a vacuum, the same as the cycloid.
Source : Webster's Unabridged Dictionary, 1913