Definition of obturator in English:


Line breaks: ob|tur¦ator
Pronunciation: /ˈɒbtjʊəreɪtə


  • 1Either of two muscles covering the outer front part of the pelvis on each side and involved in movements of the thigh and hip.
    More example sentences
    • The surgeon uses a special hip arthroscopy cannula with cannulated obturators to establish the portals.
    • These branches supply the pectineus, the hip joint, and, by rejoining the obturator, the adductor muscles.
    • In one case the iliolumbar was a branch of the obturator, itself a branch of the internal iliac.
  • 1.1 [as modifier] Relating to the obturator or to the obturator foramen: obturator neurectomy
    More example sentences
    • Metastatic prostatic and transitional cell carcinomas were present in a single obturator lymph node.
    • No tumor was detected in the right and left obturator lymph nodes.
    • The obturator artery is very variable in origin and no embryological explanation has been found.


early 18th century: from medieval Latin, literally 'obstructor', from obturare 'stop up'.

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