• Two polar bears with a seal they have caught
    Two polar bears with a seal they have caught
  • WordNet 3.6
    • n polarity a relation between two opposite attributes or tendencies "he viewed it as a balanced polarity between good and evil"
    • n polarity having an indicated pole (as the distinction between positive and negative electric charges) "he got the polarity of the battery reversed","charges of opposite sign"
    • ***

Additional illustrations & photos:

Multi-polar dynamo Multi-polar dynamo
Polar Bear Polar Bear

Webster's Revised Unabridged Dictionary
  • Interesting fact: Polar bears can smell seals who are 20 miles away
    • Polarity (Geom) A property of the conic sections by virtue of which a given point determines a corresponding right line and a given right line determines a corresponding point. See Polar n.
    • Polarity (Physics) That quality or condition of a body in virtue of which it exhibits opposite, or contrasted, properties or powers, in opposite, or contrasted, parts or directions; or a condition giving rise to a contrast of properties corresponding to a contrast of positions, as, for example, attraction and repulsion in the opposite parts of a magnet, the dissimilar phenomena corresponding to the different sides of a polarized ray of light, etc.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Polar bears are the only mammal with hair on the soles of its feet.
    • n polarity The having two opposite poles; variation in certain physical properties, so that in one direction they are the opposite of what they are in the opposite direction: thus, a magnet has polarity. Usually, as in electrified or magnetized bodies, these are properties of attraction or repulsion, or the power of taking a certain direction: as, the polarity of the magnet or magnetic needle. (See magnet.) A substance is said to possess magnetic polarity when it possesses poles, as shown by the fact that it attracts one pole of a magnetic needle and repels the other.
    • n polarity The being attracted to one pole and repelled from the other; attraction of opposites: literal or figurative: as, electricity has polarity.
    • n polarity The having of an axis with reference to which certain physical properties are determined.
    • n polarity The having, as a ray, variation of properties in reference to different inclinations to a plane through the ray; polarization.
    • n polarity That endowment of plants, plant-organs, and even of spores and cells, by virtue of which they tend to develop axially and with a distinction of base and apex; verticibasality. This polarity inheres even in small pieces of a stem in such wise that they tend to throw out roots from the end originally nearest the base and shoots from that farthest from it. Accordingly the basal end of a piece or whole is termed (first by Vochting) the root-pole, the apical end the shoot-pole, the latter also stem-pole (Pfeffer). Polarity is either (relatively) stable, as in flowering plants, or labile (changeable). Some low organisms are apolar.
    • n polarity In geometry, a conlocal reciprocation in which any two corresponding elements are doubly correlated.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: Pregnant female polar bears will not eat for several months while resting in her den under the snow. Thanx Tony W.
    • Polarity state of having two opposite poles: a condition in certain bodies according to which their properties arrange themselves so as to have opposite powers in opposite directions, as in a magnet with its two poles
    • ***


Webster's Revised Unabridged Dictionary
Cf. F. polarité,
Chambers's Twentieth Century Dictionary
L. polarispolus, a pole.


In literature:

Icebergs, polar bears, and the snows of eternal winter.
"The New North" by Agnes Deans Cameron
The farthest point in the Polar sea reached in this voyage was latitude 71 deg.
"Robert Kerr's General History and Collection of Voyages and Travels, Volume 18" by William Stevenson
The nitre-molecules approach each other, and come at length within the range of their polar forces.
"Six Lectures on Light" by John Tyndall
As an illustration of the condition of the polarized particles in a dielectric under induction, I may describe an experiment.
"Experimental Researches in Electricity, Volume 1" by Michael Faraday
The arrangement of the rooms in which polarizations are performed has an important bearing upon the accuracy of the results obtained.
"Scientific American Supplement No. 822" by Various
Its two fundamental parts are an alternating-current generator and a polarized bell-ringing device.
"Cyclopedia of Telephony & Telegraphy Vol. 1" by Kempster Miller
"Recreations in Astronomy" by Henry Warren
The same apparition was observed in the polar regions by Scoresby, and described by him.
"Young Folks' Library, Volume XI (of 20)" by Various
He found that the Polar Sea, far from being shallow, as had also been supposed, was a wide sea of vast depth.
"The Great Round World and What Is Going On In It, Vol. 1, No. 56, December 2, 1897" by Various
One of his lieutenants, Chancellor, was at first successful, and opened a direct route through the Polar Sea.
"The Waif of the "Cynthia"" by André Laurie and Jules Verne

In poetry:

No polar compass guides me,
On whatever course I stand
Assured to find my haven
When I least expect the land.
"The Quiet Home" by Ernest Jones
But wheresoe'er our footsteps tend,
'Mid tropic sands, or polar snow,
May we remember that great Friend
Who guards us wheresoe'er we go.
"New Year's Hymn" by James Monroe Whitfield
Then into the gray they sheer away,
On the awful polar tide;
And the sailors know they have seen the wraith
Of the missing Nancy's Pride.
"The Nancy's Pride" by Bliss William Carman
A pile of sheets his highness brought.
"Dear princess, pray take these;
Although our path with danger's fraught,
We'll reach the polar seas."
"The Two Bears" by Carolyn Wells
Bring with thee from thy Polar cave
All the wild songs of wind and wave,
Of toppling berg and grinding floe,
And the dread avalanche of snow!
"Storm and Calm" by Henry Timrod
Strike and smoothe, for my decks are drums,
Sing through the water-spoken prow
The octopus walking into her limbs
The polar eagle with his tread of snow.
"Ballad Of The Long-Legged Bait" by Dylan Thomas

In news:

Americans are polarized now more than ever.
After being sued by several environmental groups, the US Fish & Wildlife Service announced today that polar bears may receive what's thought to be the largest critical habitat ever.
Most everyone has a Polar Freeze story, and some of those are shared in the salute.
For many in my generation, the Polar Freeze was the teenage hangout of the '70s and early '80s.
The temperature was about -20°C (-5°F), but with a stiff wind blowing off the polar plateau that made it feel much colder.
There have been hundreds of geysers seen from Mars polar orbit already.
Polar Bears International fights to save our ambassadors of the Arctic.
Let's go against the national trend of polarization.
It's difficult to remember a more polarizing player in Baltimore than the 28-year-old power hitter, even after Reynolds hit 37 home runs in his first season with the Orioles.
1 Polars Bears have a ball controlling it.
After a recent poll from the Pew Research Center showed that the American people are "more polarized along partisan lines than at any point in the past 25 years," Stephen Colbert just couldn't take it anymore.
A polar bear family along Canada's Hudson Bay .
Jason Box / Byrd Polar Research Center, Ohio.
Icebreaker Polar Sea to live on in Seattle, for now.
Clinging to polarizing ideologies is comfortable, sometimes profitable.

In science:

The linearly polarized photon, which can also be described as a coherent mixture of two circularly polarized photons, will now induce a |∆m| = 1 transition and the induced photon is circularly polarized.
Topics in Basic Maser Theory
For example, a certain linear polarization can be attributed either to the maximal polarization at an appropriate angle θ or to a higher degree of polarization that was degraded either by curvature in the field lines or by Faraday depolarization.
Topics in Basic Maser Theory
Production of polarized positrons can be envisioned by creating polarized photons in sophisticated undulator magnets, or by backscattering polarized high-power lasers, but these possibilities require further development.
Linear Collider Physics Resource Book for Snowmass 2001 - Part 1: Introduction
The effect is analogous to the creation of circularly polarized radiation when ordinary, linearly polarized light passes through a sheet of polaroid material (or a “quarter-wave plate”) with axes that are not aligned with the direction of the polarization of the light.
Theory and Extragalactic Masers
The highest energy polarization measurements are of py (the induced polarization of the proton), and Cx′ and Cz′ (the transfer of circular polarization from the photon to the proton) from CEBAF E89-019 .
The deuteron: a mini-review