automatous

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au·tom·a·ton

A5562300 (ô-tŏm′ə-tŏn′, -tən)n. pl. au·tom·a·tons or au·tom·a·ta (-tə) 1. A self-operating machine or mechanism, especially a robot.2. One that behaves or responds in a mechanical way.
[Latin, self-operating machine, from Greek, from neuter of automatos, self-acting; see automatic.]
au·tom′a·tous adj.