extortor

(ek-stor┬┤tәr) an extraocular muscle that produces extorsion, such as the inferior oblique or the inferior rectus muscle.
Found on http://www.encyclo.co.uk/local/21001

extortor

An outward rotator. ... (05 Mar 2000) ...
Found on http://www.encyclo.co.uk/local/20973

extortor

Type: Term Pronunciation: eks-tōr′tor, -tōr Definitions: 1. An outward rotator.
Found on http://www.medilexicon.com/medicaldictionary.php?t=31120
No exact match found