Lexic.us

Definition of Polar

1. Adjective. Having a pair of equal and opposite charges.

2. Adjective. Characterized by opposite extremes; completely opposed. "Extreme and indefensible polar positions"

3. Adjective. Located at or near or coming from the earth's poles. "Antarctica is the only polar continent"

4. Adjective. Of or existing at or near a geographical pole or within the Arctic or Antarctic Circles. "Polar regions"

5. Adjective. Extremely cold. "Polar weather"

6. Adjective. Being of crucial importance. "A polar principal"

Definition of Polar

1. a. Of or pertaining to one of the poles of the earth, or of a sphere; situated near, or proceeding from, one of the poles; as, polar regions; polar seas; polar winds.

2. n. The right line drawn through the two points of contact of the two tangents drawn from a given point to a given conic section. The given point is called the pole of the line. If the given point lies within the curve so that the two tangents become imaginary, there is still a real polar line which does not meet the curve, but which possesses other properties of the polar. Thus the focus and directrix are pole and polar. There are also poles and polar curves to curves of higher degree than the second, and poles and polar planes to surfaces of the second degree.

Definition of Polar

1. Adjective. of, relating to, measured from, or referred to a geographic pole (the North Pole or South Pole) ¹

2. Adjective. of an orbit that passes over, or near, one of these poles ¹

3. Adjective. (chemistry) having a dipole; ionic ¹

4. Adjective. (mathematics) of a coordinate system, specifying the location of a point in a plane by using a radius and an angle ¹

5. Adjective. (linguistics of a question) Having but two possible answers, ''yes'' and ''no''. ¹

¹ Source: wiktionary.com

Definition of Polar

1. a straight line related to a point [n -S]

Medical Definition of Polar

1. Describes a feature or phenomenon occuring at the end (pole) of an object (such as a planet) or organism (such as an amoeba). Describes a molecular that has a permanent electric dipole. See: polar group. Compare: nonpolar, nonpolar groups. (12 Mar 1998)

Polar Pictures

Click the following link to bring up a new window with an automated collection of images related to the term: Polar Images

Lexicographical Neighbors of Polar

poking poking borack poking borax poking fun pokrovskite poky pol pol gene polacca polaccas

polack polacre polacres poland syndrome polane polar (current term) polar amino acid polar anaemia polar antonym polar bear

polar bear dip polar bears polar body polar cap polar caps polar cataract polar cell polar circle polar cod polar compound

Literary usage of Polar

Below you will find example usage of this term as found in modern and/or classical literature:

1. A Treatise on Conic Sections: Containing an Account of Some of the Most by George Salmon (1879)
"Or, again, The intersection of any two lines is the pole of the line joining their poles; and, conversely, The line joining any two points is the polar of ..."

2. A Treatise on the Higher Plane Curves: Intended as a Sequel to A Treatise on by George Salmon (1879)
"Since the polar line of any point on a line is the same as if taken with regard to the ... Then to find the polar conic of a line is (Art. 165) to find the ..."

3. A Treatise on the Analytic Geometry of Three Dimensions by George Salmon (1882)
"If we consider all the points of a fixed plane, their polar planes envelope a surface, which (as at Higher Plane Curves, Art. 184) is also the locus of ..."

4. Projective Geometry by Oswald Veblen, John Wesley Young (1918)
"polar systems. The theorems on the classification of conies (§ 79) may be regarded as completing the discussion of projective polar systems in a real plane. ..."

5. The Geographical Journal by Royal Geographical Society (Great Britain). (1907)
"The present paper was originally intended to deal, with both North polar and South polar problems ; but I soon saw that if the discussion should be in any ..."

Other Resources Relating to: Polar