- a moving stairway consisting of treads linked in an endless belt, used in department stores, subway stations, etc.
- escalator clause
Origin of escalatorcoined as a trademark (1895) from escala(de) + -tor, as in (eleva)tor
- A moving stairway consisting of steps attached to a continuously circulating belt.
- An escalator clause.
Origin of escalatorOriginally a trademark
From Escalator created by American inventor Charles Seeberger in 1900, from Latin e (“from", "out of”) + scala (“ladder”) + -or, which forms nouns of agency. Formerly a trademark. See: the appendix. Broader usage may be influenced by escalate. For an alternative etymology, see Online Etymology Dictionary.