Mathematics. the curve assumed approximately by a heavy uniform cord or chain hanging freely from two points not in the same vertical line. Equation: y = k cos h (x / k).
2.
(in electric railroads) the cable, running above the track, from which the trolley wire is suspended.
the curve assumed by a heavy uniform flexible cord hanging freely from two points. When symmetrical about the y-axis and intersecting it at y = a, the equation is y = a cosh x/a
2.
the hanging cable between pylons along a railway track, from which the trolley wire is suspended
adjective
3.
of, resembling, relating to, or constructed using a catenary or suspended chain
1872, from Latin catenarius "relating to a chain," from catenanus "chained, fettered," from catena "chain, fetter, shackle" (see chain (n.)). As a noun from 1788 in mathematics. Related: Catenarian.