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An obstruction, or indigestible mass, found in the intestine of bears and other animals during hibernation.

Manipulation applied to a hernial tumor, or to an intestinal obstruction, for the purpose of reducing it. Dunglison.

The obstruction of a blood vessel by a clot formed at the site of obstruction; -- distinguished from embolism, which is produced by a clot or foreign body brought from a distance. -- Throm*bot"ic, a.

hon.), applied to, or distingshing, a speech sound made with tone unmixed and undimmed by obstruction, such sounds, namely, the vowels and diphthongs, being so called by Dr. James Rush (1833) " from their forming the purest and most plastic material of intonation."

shell lowered or dropped into a bored oil well, and there exploded, to clear the well of obstructions or to open communication with a source of supply of oil.

Of or pertaining to the tricuspid valves; as, tricuspid obstruction. Tricuspid valve (Anat.), the valve, consisting of three triangular membranous flaps, at the opening of the right auricle into the right ventricle in the heart of most mammals; -- sometimes called the tricuspid valves, each flap being regarded as a val…

A movable obstruction in a lock, consisting of a lever, latch, wheel, slide, or the like, which must be adjusted to a particular position by a key or other means before the bolt can be thrown in locking or unlocking.

To disencumber of a clog, or of difficulties and obstructions; to free from encumbrances; to set at liberty. Shak.

To free from a dam, mound, or other obstruction. Dryden.

To free from any obstruction; to open.

ulse, or rhythmic contraction, sometimes seen in a vein, as in the neck, when there is an obstruction to the passage of blood from the auricles to the ventricles, or when there is an abnormal rigidity in the walls of the greater vessels. There is normally no pulse in a vein.

Any twisting or displacement of the intestines causing obstruction; ileus. See Ileus.