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de·or·sum·duc·tion(dē-ōr'sŭm-dŭk'shŭn), Avoid the misspelling/mispronunciation dorsumduction.
Rotation of one eye downward.
[L. deorsum, downward, + duco, to lead]
deorsumduction(dē-or″sŭm-dŭk′shŭn) [L. deorsum, downward, + ducere, to lead]
A downward turn.
Downward rotation of an eye. It is accomplished by the inferior rectus and superior oblique muscles. It can be induced by using base-up prisms. Syn. infraduction; deorsumduction.