| obstruent | Causing obstruction; blocking up; hindering; as, an obstruent medicine. Origin: L. Obstruens, p.pr. Of obstruere. See Obstruct. Anything that obstructs or closes a passage; especially, that which obstructs natural passages in the body; as, a medicine which acts as an obstruent. Source: Websters Dictionary (01 Mar 1998) |
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| obtected | 1. Covered; protected. 2. <zoology> Covered with a hard chitinous case, as the pupa of certain files. Origin: L. Obtectus, p.p. Of obtegere to cover over. Source: Websters Dictionary (01 Mar 1998) |
| obtund | To dull or blunt, especially to blunt sensation or deaden pain. Origin: L. Ob-tundo, pp. -tusus, to beat against, blunt (05 Mar 2000) |
| obtunded | Mentally dulled. Head trauma may obtund a person. (12 Dec 1998) |
| obtundent | <medicine> A substance which sheathes a part, or blunts irritation, usually some bland, oily, or mucilaginous matter; nearly the same as demulcent. Origin: L. Obtundens, p.pr. Of obtundere. Source: Websters Dictionary (01 Mar 1998) |
| obtunder | <medicine> That which obtunds or blunts; especially, that which blunts sensibility. Source: Websters Dictionary (01 Mar 1998) |
| obturating embolism | Complete closing of the lumen of a vessel by an embolism. (05 Mar 2000) |
| obturation | Obstruction or occlusion. Origin: see obturator Intermittent self-obturation, passage of a blunt object in a lumen or meatus to occlude it or to dilate it. (05 Mar 2000) |
| obturator | 1. That which closes or stops an opening. 2. <surgery> An apparatus designed to close an unnatural opening, as a fissure of the palate. Origin: NL, fr. L. Obturare to stop up: cf.F. Obturateur. <anatomy> Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen; as, the obturator nerve. <anatomy> Obturator foramen, an opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen. Source: Websters Dictionary (01 Mar 1998) |
| obturator appliance | An appliance used to obliterate congenital or acquired defects of the jaws and surrounding structures, usually made of acrylic or rubber. (05 Mar 2000) |
| obturator artery | <anatomy, artery> Anastomoses, iliolumbar, inferior epigastric, medial circumflex femoral; origin, anterior division of the internal iliac; distribution, ilium, pubis, obturator and adductor muscles; branches, pubic, acetabular, anterior, and posterior. Synonym: arteria obturatoria. (05 Mar 2000) |
| obturator canal | The opening in the superior part of the obturator membrane through which the obturator nerve and vessels pass from the pelvic cavity into the thigh. Synonym: canalis obturatorius. (05 Mar 2000) |
| obturator crest | A ridge that extends from the pubic tubercle to the acetabular notch, giving attachment to the pubofemoral ligament of the hip joint. Synonym: crista obturatoria. (05 Mar 2000) |
| obturator externus | <anatomy, muscle> Origin, lower half of margin of obturator foramen and adjacent part of external surface of obturator membrane; insertion, trochanteric fossa of greater trochanter; action, rotates thigh laterally; nerve supply, obturator. Synonym: musculus obturator externus, external obturator muscle. (05 Mar 2000) |
| obturator fascia | The portion of the pelvic fascia that covers the obturator internus muscle. Synonym: fascia obturatoria. (05 Mar 2000) |