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# conics

[kon-iks] /ˈkɒn ɪks/
noun, (used with a singular verb)
1.
the branch of geometry that deals with conic sections.
Origin of conics
see conic, -ics

## conic

[kon-ik] /ˈkɒn ɪk/
adjective
1.
Also, conical. having the form of, resembling, or pertaining to a cone.
noun
2.
Geometry, conic section.
Origin
1560-70; < Greek kōnikós, equivalent to kôn(os) cone + -ikos -ic
Related forms
conically, adverb
conicity
[ko-nis-i-tee] /kɒˈnɪs ɪ ti/ (Show IPA),
conicalness, noun
multiconic, adjective
semiconical, adjective
semiconically, adverb
subconic, adjective
subconical, adjective
subconically, adverb
unconical, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for conics
Historical Examples
• These had already been proved in earlier treatises, which Archimedes refers to as the “Elements of conics”.

Thomas Little Heath
• Each of the other theorems about conics may be stated for cones of the second order.

• Two conics which have four common tangents have always one and only one common polar-triangle.

• Astronomy was also enriched by his investigations, and he was led to several remarkable theorems on conics which bear his name.

• These conics meet at S1, and at some other point T where the line of intersection of α1 and β1 cuts the surface.

• To do this we draw two planes α1 and β1 through S1, cutting the surface Φ in two conics which we also denote by α1 and β1.

• Similarly, all conics touching four fixed lines form a system such that any fifth tangent determines one and only one conic.

• The two surfaces Φ and Φ′ have therefore the points S and S1 and the conics α1 and β1 in common.

• It will cut the two conics first at T, and therefore each at some other point which we call A and B respectively.

• The corresponding remark holds for the problem of drawing the conics which touch four lines and pass through a given point.

British Dictionary definitions for conics

## conics

/ˈkɒnɪks/
noun
1.
(functioning as sing) the branch of geometry concerned with the parabola, ellipse, and hyperbola

## conic

/ˈkɒnɪk/
adjective
1.
1. having the shape of a cone
2. of or relating to a cone
noun
2.
another name for conic section
See also conics
Derived Forms
conically, adverb
Word Origin
C16: from New Latin, from Greek kōnikos, from kōnoscone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for conics

## conic

adj.

1560s, "pertaining to a cone," from Latin conicus, from Greek konikos "cone-shaped," from konos (see cone).

Online Etymology Dictionary, © 2010 Douglas Harper
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### Difficulty index for conics

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### Word Value for conics

10
13
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