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Vector   /vˈɛktər/   Listen
Vector

noun
1.
A variable quantity that can be resolved into components.
2.
A straight line segment whose length is magnitude and whose orientation in space is direction.
3.
Any agent (person or animal or microorganism) that carries and transmits a disease.  Synonym: transmitter.  "Fleas are vectors of the plague" , "Aphids are transmitters of plant diseases" , "When medical scientists talk about vectors they are usually talking about insects"
4.
(genetics) a virus or other agent that is used to deliver DNA to a cell.



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"Vector" Quotes from Famous Books



... these also by his hypothesis. If he could, there might be something in his theory. If he failed—well, there was an end of it. The questions were not difficult. They concerned the error of the radius vector. Adams could have answered them with perfect ease; but sad to say, though a brilliant mathematician, he was not a man of business. He did ...
— The Great Events by Famous Historians, Vol. 17 • Charles Francis Horne

... scrambled from Wright- Patterson. The pilots of the Air Guard '51 and the Wright-Patterson '51 could both see the UFO, and they were going after it. The master sergeant who was operating the radar called the F-51's on the radio, got them together and started to vector them toward the target. As the two airplanes climbed they kept up a continual conversation with the radar operator to make sure they were all after the same thing. For several minutes they could clearly see the UFO, but when they reached about 15,000 feet, ...
— The Report on Unidentified Flying Objects • Edward Ruppelt

... Besides searching for the vector or vectors that spread the disease other important studies are in progress. Among these is the consideration of chemotherapy as a possible means of controlling oak wilt. For our purpose, plant chemotherapy may be defined as the control of disease by chemicals which are introduced into the ...
— Northern Nut Growers Association Report of the Proceedings at the 43rd Annual Meeting - Rockport, Indiana, August 25, 26 and 27, 1952 • Various

... and scientific phrases, the meaning of which would not be discovered for thirty-three hundred years? Could not Dr. Alexander write a Sabbath-school book, without filling it full of such phrases as "right ascension," "declination," "precession of the equinoxes," "radius vector," and the like? Or, if some wiseacre did prepare such a book, would it be very useful to children? Perhaps even we, learned philosophers of the nineteenth century, are not out of school yet. How many discoveries are yet ...
— Fables of Infidelity and Facts of Faith - Being an Examination of the Evidences of Infidelity • Robert Patterson

... are conducted under a considerable pressure. Although many pseudo-symmetric twins are transformable into the simpler form, yet, in some cases, a true polymorph results, the change being indicated, as before, by alterations in scalar (as well as vector) properties. ...
— Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 1 - "Chtelet" to "Chicago" • Various



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