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orthotist or·thot·ist (ôr-thŏt'ĭst, ôr'thə-tĭst)
A specialist in orthotics.
orthotics or·thot·ics (ôr-thŏt'ĭks)
The science that deals with the use of specialized mechanical devices to support or to supplement weakened or abnormal joints or limbs. Also called orthetics.