alimentary bolus


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bolus

 [bo´lus]
1. a rounded mass of food or pharmaceutical preparation ready to be swallowed, or such a mass passing through the gastrointestinal tract.
2. a concentrated mass of pharmaceutical preparation, e.g., an opaque contrast medium, given intravenously or swallowed.
3. a mass of scattering material, such as wax or paraffin, placed between the radiation source and the skin to achieve a precalculated isodose pattern in the tissue irradiated.
alimentary bolus the mass of food, made ready by mastication, that enters the esophagus at one swallow.

alimentary bolus

See bolus.

alimentary bolus

A mass of masticated food in the esophagus that is ready to be passed into the stomach.
See also: bolus

bolus

1. a rounded mass of food or pharmaceutical preparation ready to be swallowed, or such a mass passing through the gastrointestinal tract. In previous times most medication for horses was given by bolus. Called also ball.
2. a concentrated mass of pharmaceutical preparation, e.g. an opaque contrast medium, given intravenously.
3. a mass of scattering material, such as wax or paraffin, placed between the radiation source and the skin to achieve a precalculated isodose pattern in the tissue irradiated.

alimentary bolus
the mass of food, made ready by mastication, that enters the esophagus at one swallow.
intraruminal identification bolus
contain passive radiofrequency responders for individual animal identification. Used in sheep and cattle.
physic bolus
see physic (2).
purging bolus
an oldtime treatment for equine colic. Usually contained aloes or istin.
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