obturator

obturator
1. Any structure that occludes an opening. 2. Denoting the o. foramen, the o. membrane, or any of several parts in relation to this foramen. 3. A prosthesis used to close an opening of the hard palate, usually a cleft palate. 4. The stylus or removable plug used during the insertion of many tubular instruments. [L. obturo, pp. -atus, to occlude or stop up]

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ob·tu·ra·tor 'äb-t(y)ə-.rāt-ər n
1 a) either of two muscles arising from the obturator membrane and adjacent bony surfaces: (1) OBTURATOR EXTERNUS (2) OBTURATOR INTERNUS
b) OBTURATOR NERVE
2 a) a prosthetic device that closes or blocks up an opening (as a fissure in the palate)
b) a device that blocks the opening of an instrument (as a sigmoidoscope) that is being introduced into the body

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n.
2. a wire or rod within a cannula or hollow needle for piercing tissues or fitting aspirating needles.
3. a removable form of denture that both closes a defect in the palate and also restores the dentition. The defect may result from removal of a tumour or, less commonly, be congenital, as in a cleft palate.

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ob·tu·ra·tor (obґtə-raґtər) [L.] 1. any structure, natural or artificial, that closes an opening. 2. speech-aid prosthesis.

Medical dictionary. 2011.

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  • obturator — OBTURATÓR, obturatoare, s.n. Dispozitiv utilizat în scopul micşorării secţiunii de trecere a unui material fluid sau pulverulent, a unui fascicul de lumină printr o deschidere etc. ♢ Obturator fotografic = dispozitiv mecanic montat pe un aparat… …   Dicționar Român

  • Obturator — Ob tu*ra tor, a. (Anat.) Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve. [1913 Webster] {Obturator foramen} (Anat.), an opening situated between the public and… …   The Collaborative International Dictionary of English

  • Obturator — Ob tu*ra tor, n. [NL., fr. L. obturare to stop up: cf. F. obturateur.] 1. That which closes or stops an opening. [1913 Webster] 2. (Surg.) An apparatus designed to close an unnatural opening, as a fissure of the palate. [1913 Webster] 3.… …   The Collaborative International Dictionary of English

  • Obturātor — (lat.), 1) Verstopfer; 2) (O. palāti), Instrument, um bei einer widernatürlichen Spalte od. Öffnung im knöchernen Gaumen dieselbe auszufüllen u. zu verhindern, daß die Nahrungsstoffe durch dieselbe in die Nasenhöhle gelangen. 3) Theil des… …   Pierer's Universal-Lexikon

  • Obturātor — (lat., »Verstopfer«), in der Chirurgie eine Vorrichtung aus vulkanisiertem Kautschuk, Holz, Elfenbein etc. zum Verschließen von auf krankhafte Weise entstandenen oder auf operativem Weg erzeugten Öffnungen. Obturatoren haben die Form von Platten… …   Meyers Großes Konversations-Lexikon

  • Obturator — Obturātor (lat., »Verstopfer«), Vorrichtung aus Kautschuk, Holz u.a., um Gaumendefekte zu schließen …   Kleines Konversations-Lexikon

  • Obturator —   [zu lateinisch obturare, obturatum »verstopfen«] der, s/... toren, herausnehmbare Prothese aus Kunststoff oder Metall zum Verschluss von (Kiefer )Gaumenspalten u. a. sowie zur Verbesserung der hierdurch behinderten Sprachartikulation und der… …   Universal-Lexikon

  • Obturator — Contents 1 See also Obturator may refer to: In medicine: Obturator artery Obturator nerve Obturator vein Obturator externus muscle Obturator internus muscle Obturator membrane …   Wikipedia

  • Obturator — Ob|tu|ra|tor der; s, ...oren <aus gleichbed. nlat. obturator; vgl. ↑...or> Apparat zum Verschluss von Körperöffnungen, insbes. Verschlussplatte für angeborene Gaumenspalten (Med.) …   Das große Fremdwörterbuch

  • obturator — n. 1) See: obturator muscle 2) a wire or rod within a cannula or hollow needle for piercing tissues or fitting aspirating needles. 3) a removable form of denture that both closes a defect in the palate and also restores the dentition. The defect… …   The new mediacal dictionary

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