| ATD | Alzheimer-type dementia; androstatrienedione; anthropomorphic test dummy; antithyroid drug; aqueous ... |
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| RCT | radiotherapy and chemotherapy; randomized clinical trial; randomized controlled trial; registered ca... |
| STT | Schirmer Tear Test |
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| TBUT | Tear break-up time |
| tear | 1. To separate by violence; to pull apart by force; to rend; to lacerate; as, to tear cloth; to tear a garment; to tear the skin or flesh. "Tear him to pieces; he's a conspirator." (Shak) 2. Hence, to divide by violent measures; to disrupt; to rend; as, a party or government torn by factions. 3. To rend away; to force away; to remove by force; to sunder; as, a child torn from its home. "The hand of fate Hath torn thee from me." (Addison) 4. To pull with violence; as, to tear the hair. 5. To move violently; to agitate. "Once I loved torn ocean's roar." To tear a cat, to rant violently; to rave; especially applied to theatrical ranting. To tear down, to demolish violently; to pull or pluck down. To tear off, to pull off by violence; to strip. To tear out, to pull or draw out by violence; as, to tear out the eyes. To tear up, to rip up; to remove from a fixed state by violence; as, to tear up a floor; to tear up the foundation of government or order. Origin: OE. Teren, AS. Teran; akin to OS. Farterian to destroy, D. Teren to consume, G. Zerren to pull, to tear, zehren to consume, Icel. Taera, Goth. Gatairan to destroy, Lith. Dirti to flay, Russ. Drate to pull, to tear, Gr. To flay, Skr. Dar to burst. 63. Cf. Darn, Epidermis, Tarre, Tirade. 1. <physiology> A drop of the limpid, saline fluid secreted, normally in small amount, by the lachrymal gland, and diffused between the eye and the eyelids to moisten the parts and facilitate their motion. Ordinarily the secretion passes through the lachrymal duct into the nose, but when it is increased by emotion or other causes, it overflows the lids. "And yet for thee ne wept she never a tear." (Chaucer) 2. Something in the form of a transparent drop of fluid matter; also, a solid, transparent, tear-shaped drop, as of some balsams or resins. "Let Araby extol her happy coast, Her fragrant flowers, her trees with precious tears." (Dryden) 3. That which causes or accompanies tears; a lament; a dirge. "Some melodous tear." Tear is sometimes used in the formation of self-explaining compounds; as, tear-distilling, tear-drop, tear-filled, tear-stained, and the like. Origin: AS. Tear; akin to G. Zarhe, OHG. Zahar, OFries. & Icel. Tar, Sw. Tar, Dan. Taare, Goth. Tagr, OIr. Der, W. Dagr, OW. Dacr, L. Lacrima, lacruma, for older dacruma, Gr, . 59. Cf. Lachrymose. Source: Websters Dictionary (01 Mar 1998) |
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| tear drop fracture | <radiology> Avulsion of anterioinferior corner of cervical vertebral body by anterior ligament, most severe and unstable injury of the cervical spine, often the result of diving into shallow water, may be secondary to hyperflexion or hyperextension, typically at C2 see: cervical spine fractures (12 Dec 1998) |
| tear film | A protective film, 7 to 9 nm thick, consisting of external oily, intermediate watery, and deep mucoprotein layers. Synonym: tear film. (05 Mar 2000) |
| tear gas | A gas, such as acetone, benzene bromide, and xylol, that causes irritation of the conjunctiva and profuse lacrimation. See: lacrimator. (05 Mar 2000) |
| tear gases | Gases that irritate the eyes, throat, or skin. Severe lacrimation develops upon irritation of the eyes. (12 Dec 1998) |
| tear sac | The upper portion of the nasolacrimal duct into which empty the two lacrimal canaliculi; empty. Synonym: saccus lacrimalis, dacryocyst, sacculus lacrimalis, tear sac. (05 Mar 2000) |
| tear stone | A concretion in the lacrimal apparatus. Synonym: lacrimal calculus, ophthalmolith, tear stone. Origin: dacryo-+ G. Lithos, stone (05 Mar 2000) |
| tear-thumb | <botany> A name given to several species of plants of the genus Polygonum, having angular stems beset with minute reflexed prickles. Source: Websters Dictionary (01 Mar 1998) |
| tearing | 1. <medicine> The watery eye; a disease in which the tears accumulate in the eye, and trickle over the cheek. 2. The emphatic repetition of a word or phrase, at the end of several sentences or stanzas. Origin: L, fr. Gr, fr. To bring to or upon; + to bring. Source: Websters Dictionary (01 Mar 1998) |
| tearing mode | <radiobiology> A resistive magnetohydrodynamic instability which is spatially localised near a rational surface and which grows at a rate slower than the magnetohydrodynamic Alfven rate, but faster than the resistive skin diffusion rate. The instability tears magnetic field lines and reconnects them into a new state of lower magnetic energy. Synonym: tearing instability (09 Oct 1997) |
| tearpit | <anatomy> A cavity or pouch beneath the lower eyelid of most deer and antelope; the lachrymal sinus; larmier. It is capable of being opened at pleasure and secretes a waxy substance. Source: Websters Dictionary (01 Mar 1998) |
| tears | The watery secretion of the lacrimal glands which serve to moisten the conjunctiva; the secretion is slightly alkaline and saline. (12 Dec 1998) |
| blocked tear duct | A blocked nasolacrimal duct which normally carries tears from the eyes to the nose. Commonly seen in infants, but usually resolves spontaneously by age 2-3. In adults blockage can occur from chronic sinusitis or trauma. A gentle massage of the lacrimal gland 2-3 times a day for several months may reopen the tear duct. (27 Sep 1997) |
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| bucket-handle tear | A tear in the central part of a semilunar cartilage. (05 Mar 2000) |
| mallory-weiss tear | Lacerations in the oesophageal mucosa that occur close to ot at the junction of the oesophagus and the stomach. Mallory-Weiss tears occur as the result of forceful vomiting or coughing. Symptoms include vomiting blood. (27 Sep 1997) |
| wear-and-tear pigment | Lipofuscin that accumulates in aging or atrophic cells as a residue of lysosomal digestion. (05 Mar 2000) |
Synonyms : Tear Gas, Gas, Tear, Gases, Tear
Synonyms : Tear
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| tear sac |
lacrimal sac: either of the two dilated ends of the lacrimal ducts at the nasal ends of the eyes that fill with tears secreted by the lacrimal glands
Ãâó: wordnet.princeton.edu/perl/webwn
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| teardrop |
anything shaped like a falling drop (as a pendant gem on an earring) tear: a drop of the clear salty saline solution secreted by the lacrimal glands; "his story brought tears to her eyes"
Ãâó: wordnet.princeton.edu/perl/webwn
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| tearing |
lacrimation: shedding tears fierce: marked by extreme intensity of emotions or convictions; inclined to react violently; fervid; "fierce loyalty"; "in a tearing rage"; "vehement dislike"; "violent passions"
Ãâó: wordnet.princeton.edu/perl/webwn
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| tear |
separate or cause to separate abruptly; "The rope snapped"; "tear the paper" to separate or be separated by force; "planks were in danger of being torn from the crossbars" a drop of the clear salty saline solution secreted by the lacrimal glands; "his story brought tears to her eyes" rip: an opening made forcibly as by pulling apart; "there was a rip in his pants"; "she had snags in her stockings" move quickly and violently; "The car tore down the street"; "He came charging into my office" bust: an occasion for excessive eating or drinking; "they went on a bust that lasted three days" pluck: strip of feathers; "pull a chicken"; "pluck the capon" the act of tearing; "he took the manuscript in both hands and gave it a mighty tear" fill with tears or shed tears; "Her eyes were tearing"
Ãâó: wordnet.princeton.edu/perl/webwn
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| tear duct |
lacrimal duct: any of several small ducts that carry tears from the lacrimal glands
Ãâó: wordnet.princeton.edu/perl/webwn
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| tear | the act of tearing |
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| tear | an occasion for excessive eating or drinking |
| tear | a drop of the clear salty saline solution secreted by the lacrimal glands |
| tear | an opening made forcibly as by pulling apart |
| tear | fill with tears or shed tears |
| tear | strip of feathers |
| tear | to separate or be separated by force |
| tear | separate or cause to separate abruptly |
| tear | move quickly and violently |
| tear | move precipitously or violently |
| tear | express a totally negative opinion of |
| tear | rip off violently and forcefully |
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