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The Collaborative International Dictionary

Chyle \Chyle\, n. [NL. chylus, Gr. ? juice, chyle, fr. ? to pour: cf. F. chyle; prob. akin to E. fuse to melt.] (Physiol.) A milky fluid containing the fatty matter of the food in a state of emulsion, or fine mechanical division; formed from chyme by the action of the intestinal juices. It is absorbed by the lacteals, and conveyed into the blood by the thoracic duct.

Douglas Harper's Etymology Dictionary

1540s, from Late Latin chylus, from Greek khylos "juice" (of plants, animals, etc.), from stem of khein "to pour, gush forth," from PIE *ghus-mo-, from root *gheu- "to pour, pour a libation" (see found (v.2)). Compare also chyme.


n. A digestive fluid containing fatty droplets, found in the small intestine.


n. a milky fluid consisting of lymph and emulsified fats; formed in the small intestine during digestion of ingested fats


Chyle (; from the Greek word χυλός chylos, "juice") is a milky bodily fluid consisting of lymph and emulsified fats, or free fatty acids (FFAs). It is formed in the small intestine during digestion of fatty foods, and taken up by lymph vessels specifically known as lacteals. The lipids in the chyle are colloidally suspended in chylomicrons.

Usage examples of "chyle".

Then the chyle, conveyed through the thoracic duct from its cistern in the mesentery, is carried to the vena cava, and so to the heart.

In each organ separation and purification of the blood are effected and removal of the heterogeneous, not to mention how the heart sends its blood up to the brain after purification in the lungs, which is done by the arteries called carotids, and how the brain returns the blood, now vivified, to the vena cava just above where the thoracic duct brings in the chyle, and so back again to the heart.

The structure of the spleen and that of the mesenteric glands are similar, although the former is provided with a scanty supply of lymphatic vessels, and the chyle does not pass through it, as through the mesenteric glands.

She suffered from pleural effusion, which, on aspiration, proved to be chyle.

From this reservoir the chyle and lymph flow into the thoracic duct, through which they are conveyed to the left subclavian vein, there to be mingled with venous blood.

And we stuffing food in one hole and out behind: food, chyle, blood, dung, earth, food: have to feed it like stoking an engine.