1. Pertaining to, or resembling, milk; milky; as, the lacteal fluid.

2. <anatomy> Pertaining to, or containing, chyle; as, the lacteal vessels.

Origin: L. Lacteus milky, fr. Lac, lactis, milk. Cf. Galaxy, Lettuce.

<anatomy> One of the lymphatic vessels which convey chyle from the small intestine through the mesenteric glands to the thoracic duct; a chyliferous vessel.

(01 Mar 1998)