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Webster 1913 Edition

Obturator

Ob′tu-raˊtor

,
Noun.
[NL., fr. L.
obturare
to stop up: cf. F.
obturateur
.]
1.
That which closes or stops an opening.
2.
(Surg.)
An apparatus designed to close an unnatural opening, as a fissure of the palate.

Ob′tu-raˊtor

,
Adj.
(Anat.)
Serving as an obturator; closing an opening; pertaining to, or in the region of, the obturator foramen;
as, the
obturator
nerve
.
Obturator foramen
(Anat.)
,
an opening situated between the public and ischial parts of the innominate bone and closed by the obturator membrane; the thyroid foramen.

Webster 1828 Edition

Obturator

OB'TURATOR

,
Noun.
In anatomy, the obturators are muscles which rise from the outer and inner side of the pelvis around foramen thyroideum, and are rotators of the thigh.

Definition 2024

obturator

obturator

English

Noun

obturator ‎(plural obturators)

  1. (surgery) An object used to obstruct a hole, such as a fissure of the palate.
  2. (engineering) Valve closure member (disk, gate, plug, etc.).
  3. (ordnance) Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.
  4. (photography) A camera shutter.

References

  • For the engineering sense: American Society of Mechanical Engineers (ASME) OM Code.

Latin

Verb

obtūrātor

  1. second-person singular future passive imperative of obtūrō
  2. third-person singular future passive imperative of obtūrō

Etymology

From Latin obtūrō ‎(“to stop, block up”).

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