tear

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tear

a drop of the secretion of the lacrimal glands
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

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
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
Symptoms can include sadness and tearfulness that last longer than the normal baby blues, poor concentration, feelings of inadequacy, disturbed sleep, lack of motivation, difficulty bonding with the baby and lack of interest in things you used to enjoy.
In humans, adrenal insufficiency causes health problems including depression, fatigue, allergies, low blood pressure, dizziness on standing, anxiety and intolerance of stress, hypoglycemia, weight loss, tearfulness and increased sense of smell?
Her mood seesaws between tearfulness and pricey impatience as John's attention is diluted by constant phone calls from his wife and lawyer about closing complications on the purchase of a new house.
Approximately 13% of new mothers experience postpartum depression (PPD)(2), which is characterized by low mood, anxiety, confusion, emotional instability, tearfulness, feelings of inadequacy, inability to cope, and suicidal ideation, and often exacerbated by low self-esteem, inability to cope, feelings of incompetence and loss of self, and loneliness (3-4).
The condition, which usually shows itself between four and six weeks of giving birth, is distinct from the brief period of tearfulness known as "baby blues".
An estimated 40% - 85% of women experience "baby blues." Symptoms of baby blues are rapidly fluctuating moods, tearfulness, irritability, or anxiety that lasts for several days.
Symptoms include insomnia, tearfulness, fatigue, anxiety, irritability, poor concentration.
Jankova is outstanding from the beginning, in the first song, Mussorgsky's The Children's Room: smiles, indignation, obstinacy, sighs, secrecy and tearfulness follow each other in a pure uncomplicated register, and in a very realistic style the singer employs hints of declamation, and an agogic and emotional mutability explored in minute detail.
Depression can feel like a pervasive sense of hopelessness, a feeling of wanting to give up, tearfulness, or a sadness that does not seem to go away after a couple weeks.
According to the DON, the patient had severe cognitive impairment, rarely or never made herself understood, rarely or never understood others, was subject to periods of crying, tearfulness, noisiness, and kicking, and depended on others for all activities for daily living.
"The result of a stress-related breakdown, however, can be a broad spectrum of symptoms, lasting for a relatively brief period of time." Symptoms may include feelings of sadness, tearfulness, and a sense of hopelessness.
Alzheimer's disease patients with apathy show none of the sadness, sense of worthlessness or hopelessness, tearfulness, or anxiety seen in patients with depression.