obturator

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obturator

[′äb·tə‚rād·ər]
(anatomy)
Pertaining to that which closes or stops up, as an obturator membrane.
Either of two muscles, originating at the pubis and ischium, which rotate the femur laterally.
(medicine)
A solid wire or rod contained within a hollow needle or cannula.
(ordnance)
Assembly of steel spindle, mushroom head, obturator rings, and a gas-check or obturator pad of tough plastic material used as a seal to prevent the escape of propellant gases around the breechblock of guns using separate-loading ammunition, and therefore not having the obturation provided by a cartridge case.
A device incorporated in a projectile to make the tube of a weapon gastight, preventing escape of gas until the projectile has left the muzzle of the weapon.
References in periodicals archive ?
The optimal position of the tip of the obturator is at the center of the lesion (Figure 7).
The process of creaming honey takes place using a Pierre Guerin Homogeniser fitted with a smoother style head and a double die obturator, which smoothes and softens the honey, making a perfect honey cream.
The reusable obturators are easily reprocessed within the hospital to help reduce waste and offer an efficient, longer lasting alternative to disposable devices.
Resectoscopes, Arthroscopes, Flexible fibre scopes, Sheaths and Obturators.