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cot

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cot

1[kot]
–noun
1. a light portable bed, esp. one of canvas on a folding frame.
2. British. a child's crib.
3. a light bedstead.
4. Nautical. a hammocklike bed stiffened by a suspended frame.

Origin:
1625–35; < Hindi khāṭ < Prakrit khaṭṭā < Skt khaṭvā; akin to Tamil kattil bedstead

cot

2[kot]
–noun
1. a small house; cottage; hut.
2. a small place of shelter.
3. a sheath or protective covering, as for an injured finger or toe.

Origin:
bef. 900; ME, OE cot (neut.; cf. cote 1 ); c. ON kot hut; akin to cubby, cove 1

cot

Trigonometry.
cotangent.

co⋅tan⋅gent

[koh-tan-juhnt, koh-tan-]
–noun Trigonometry.
1. (in a right triangle) the ratio of the side adjacent to a given angle to the side opposite.
2. the tangent of the complement, or the reciprocal of the tangent, of a given angle or arc. Abbreviation: cot, ctn
Also, co⋅tan [koh-tan] .


Origin:
1625–35; < NL cotangent- (s. of cotangēns). See co-, tangent


co⋅tan⋅gen⋅tial [koh-tan-jen-shuhl] , adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To cot
cot 1   (kŏt)   
n.  
  1. A narrow bed, especially one made of canvas on a collapsible frame.

  2. Chiefly British A crib.


[Hindi khāṭ, from Sanskrit khaṭvā, from Tamil kaṭṭu, to bind, tie.]
Word History: People might assume that there is nothing particularly exotic about the history of the word cot. However, cot is a good example of how some words borrowed from other cultures become so firmly naturalized over time that they lose their émigré flavor. The British first encountered the object denoted by cot, a light frame strung with tapes or rope, in India, where their trading stations had been established as early as 1612. The word cot, first recorded in English in 1634, comes from khāṭ, the Hindi name for the contrivance. During subsequent years, cot has been used to denote other types of beds, including in British usage a crib.
cot 2   (kŏt)   
n.  
  1. A small house.

  2. A protective covering or sheath.


[Middle English, from Old English.]
cot 3  
abbr.  cotangent
co·tan·gent   (kō-tān'jənt)   


(click for larger image in new window)
n.   Abbr. cot
  1. The reciprocal of the tangent of an angle in a right triangle.

  2. The tangent of the complement of a directed angle or arc.

co'tan·gen'tial (-jěn'shəl) adj.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

cot 
"small bed," 1634, from Hindi khat "couch, hammock," from Skt. khatva.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: 1cot
Pronunciation: 'kät
Function: noun
: a protective cover for a finger called also fingerstall

Main Entry: 2cot
Function: noun
: a wheeled stretcher for hospital, mortuary, or ambulance service
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Science Dictionary
cot  
Abbreviation of cotangent
cotangent   (kō-tān'jənt)  Pronunciation Key 
  1. The ratio of the length of the adjacent side of an acute angle in a right triangle to the length of the opposite side. The cotangent is the inverse of the tangent.

  2. The ratio of the ordinate to the abscissa of the endpoint of an arc of a unit circle centered at the origin of a Cartesian coordinate system, the arc being of length x and measured counterclockwise from the point (1, 0) if x is positive or clockwise if x is negative.

  3. A function of a number x, equal to the cotangent of an angle whose measure in radians is equal to x.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Abbreviations & Acronyms
cot
cotangent
The American Heritage® Abbreviations Dictionary, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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