/kat"n er'ee/ ; esp. Brit. /keuh tee"neuh ree/ , n. , pl. catenaries , adj.
n.
1. Math. 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.
adj.
3. of, pertaining to, or resembling a catenary.
4. of or pertaining to a chain or linked series.
[ 1780-90; catenarius relating to a chain, equiv. to caten ( a ) a chain + -arius -ARY ]