tear

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Related to in tears: tear up, tear off, tear limb from limb, tear to pieces, tearing apart

tear

a drop of the secretion of the lacrimal glands

Tear

 

a drop of the clear, slightly opalescent fluid secreted by the lacrimal glands. Tears are slightly alkaline. They contain as much as 99 percent water and 0.9 percent inorganic matter, chiefly sodium chloride and small quantities of sodium carbonate, magnesium carbonate, calcium sulfate, and calcium phosphate, as well as the antibacterial enzyme lysozyme; other proteins constitute 0.1 percent. Tears moisten the anterior surface of the eye and prevent it from drying, wash foreign bodies out of the conjunctival sac, and participate in the nutrition of the cornea.

run

run, 3
1. In roofing, the horizontal distance from the face of a wall to the ridge of the roof.
2. In stairways, the width of a single stair tread.
3. The horizontal distance covered by a flight of steps.
4. The runway or track for a sash.
5. A small stream of paint flowing vertically on a
References in periodicals archive ?
Everybody is sick and in tears over this because these are two incredible kids,'' says Linda Wolvek, who teaches English at Polytechnic Math/Science Magnet High School in Sun Valley, where Fizza and Syed attend.
Some of my best students were in tears for days--then they simply disappeared from the student body," she says.