stroke

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stroke

stroke, destruction of brain tissue as a result of intracerebral hemorrhage or infarction caused by thrombosis (clotting) or embolus (obstruction in a blood vessel caused by clotted blood or other foreign matter circulating in the bloodstream); formerly called apoplexy. Cerebral hemorrhage or thrombosis occurs most often in elderly persons with constricted arteries (see arteriosclerosis), although either may also be caused by inflammatory or toxic damage to the cerebral blood vessels. Cerebral embolism may occur at any age, even in children.

Symptoms of stroke develop suddenly. In cases of severe brain damage there may be deep coma, paralysis of one side of the body, and loss of speech, followed by death or permanent neurological disturbances after recovery. If the brain damage sustained has been slight, there is usually complete recovery, but most survivors of stroke require extensive rehabilitation. Hypertension, which is a major cause of intracranial hemorrhage and stroke, can be treated by preventive measures using diet (e.g., increasing nutrients such as antioxidants and folate), drug therapy, and stress reduction techniques. Other preventive measures for people at high risk include daily aspirin to retard clot formation and surgical correction of the narrowed carotid artery. Sometimes surgical removal of the clot is possible on larger vessels, but it is usually pointless after the stroke or when blockage is widespread. The thrombolytic drug tissue plasminogen activator, widely used to treat heart attacks, has been approved for use within three hours of the onset of strokes caused by clots.

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stroke

[strōk]
(computer science)
In optical character recognition, straight or curved portion of a letter, such as is commonly made with one smooth motion of a pen. Also known as character stroke.
That segment of a printed or handwritten character which has been temporarily isolated from other segments for the purpose of analyzing it, particularly with regard to its dimensions and relative reflectance. Also known as character stroke.
(electronics)
The penlike motion of a focused electron beam in cathode-ray-tube diplays.
(mechanical engineering)
The linear movement, in either direction, of a reciprocating mechanical part. Also known as throw.
(medicine)
A sudden cerebrovascular accident.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

stroke

strokeclick for a larger image
The linear distance the piston moves inside the cylinder from top to bottom in a reciprocating engine.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

stroke

1. Pathol apoplexy; rupture of a blood vessel in the brain resulting in loss of consciousness, often followed by paralysis, or embolism or thrombosis affecting a cerebral vessel
2. a pulsation, esp of the heart
3. Sport the act or manner of striking the ball with a racket, club, bat, etc.
4. any one of the repeated movements used by a swimmer to propel himself through the water
5. a manner of swimming, esp one of several named styles such as the crawl or butterfly
6. 
a. any one of a series of linear movements of a reciprocating part, such as a piston
b. the distance travelled by such a part from one end of its movement to the other
7. a single pull on an oar or oars in rowing
8. manner or style of rowing
9. the oarsman who sits nearest the stern of a shell, facing the cox, and sets the rate of striking for the rest of the crew
www.neuro.wustl.edu/stroke
http://209.107.44.93/NationalStroke/default.htm
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

stroke

The oblique stroke character, "/", ASCII 47.

See ASCII for other synonyms.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)

stroke

(1) In printing, the weight, or thickness, of a character. For example, in the LaserJet, one of the specifications of the font description is the stroke weight from lightest to boldest. See stroke weight.

(2) In computer graphics, a pen or brush stroke. The stroke function lets you set the width of the line being drawn.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
vertical stroke on the EMS series pickers for presses up to about 300 tons, and 18- to 40-in.
Vertical stroke can be extended with an optional telescoping arm to 1800 mm/70 in.
The main arm has a vertical stroke of 450 to 550 mm.
Vertical stroke is 800 mm, horizontal stroke is 700 mm, and traverse is 1400 ram.
The CZ-700 and CZ-700s (with sprue picker) has a vertical stroke of 700 to 900 mm, traverse stroke of 1200 to 1600 mm, and strip stroke of 80 to 850 mm.
The standard robot has a 460-mm strip stroke, 1000-mm vertical stroke, 1520-mm traverse stroke, 90[degrees] wrist flip, and 6.6-lb payload capacity.
The standard robot has a 900-mm strip stroke, 1400-mm telescoping vertical stroke, and 2750-mm traverse stroke.
Features include strip stroke up to 2000 mm at up to 2 meters/sec, vertical stroke up to 3000 mm at up to 3 m/ sec, and traverse stroke of 5000 mm at up to 3 m/sec.
It has a traverse stroke of 800 mm, strip stroke up to 300 mm, and vertical stroke to 550 mm.
It has a servo-driven kick stroke of 500 mm and servo vertical stroke up to 600 mm.
Fill in the front part of your brow using vertical strokes. Next, fill in any sparse areas using a brown eyeshadow or eyebrow powder.
Paint the rest of the wall with long, vertical strokes in a' W motion, keeping an eye out for drips as you go.