tears

tears
pl. n.
the fluid secreted by the lacrimal glands (see lacrimal apparatus) to keep the front of the eyeballs moist and clean. Tears contain lysozyme, an enzyme that destroys bacteria. Irritation of the eye, and sometimes emotion, cause excessive production of tears. See also blinking.

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(tērz) [L. lacrimae; Gr. dakrya] 1. the watery secretion of the lacrimal glands which serves to moisten the conjunctiva; the secretion is slightly alkaline and saline. 2. small, naturally formed, droplike masses of a gum or resin.

Medical dictionary. 2011.

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