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lateroflexion
lateroflexion n. 
/ˌlædəroʊˈflɛkʃ(ə)n/ [in sense (a) after French latéro-flexion (1847 or earlier)] (a) sideways flexion of the fundus of the uterus with regard to the cervix; cf. anteflexion n., retroflexion n. 2 (now rare); (b) sideways bending of (a part of) the body.
Brit. /ˌlat(ə)rə(ʊ)ˈflɛkʃn/
, /ˌlat(ə)rə(ʊ)ˈflɛkʃn/U.S. /ˌlædərəˈflɛkʃ(ə)n/
, /ˌlædərəˈflɛkʃ(ə)n//ˌlædəroʊˈflɛkʃ(ə)n/ΚΠ
1853 Boston Med. & Surg. Jrnl. 18 May 319 It was..M. Ameline who definitively adopted the expressions anteflexion and retroflexion, which have been admitted into general use, together with the names anteversion and retroversion proposed by Desgranges. Within a short time the terms lateroflexion and lateroversion have been with propriety added.
1869 T. H. Tanner Man. Pract. Med. (ed. 6) II. 349 Where the uterus is bent and its fundus fixed to the right or left side, the cervix remaining in the median line (latero-flexion) this deviation from the natural position will [etc.].
1966 Jrnl. Neurol. Sci. 3 11 The neurological examination revealed only a slight hypotonia on the left side. Her attitude showed left latero-flexion of the head, semi-flexion of the upper limb with pronation of the forearm and slight flexion of the wrist.
2009 R. Van Wessum in N. E. Robinson & K. A. Sprayberry Current Therapy Equine Med. (ed. 6) cvii. 486/1 The rider can make the horse bend on the circles and spirally close the circle to a smaller diameter, thus increasing lateroflexion.
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