polar

極地の

地球の北極や南極の周辺にある寒い地域に関する。

やさしい英語で： Related to the cold areas around the northern or southern ends of the Earth.

• Polar bears live in the Arctic.
• The team studied melting polar ice.
• Few plants survive the long polar winter.

よく使う表現： polar bear, polar ice, polar region

正反対の、対極の

考えや性質、意見などが互いに完全に反対である。

やさしい英語で： At completely opposite ends of a range of ideas, qualities, or opinions.

• Their opinions are polar opposites.
• The debate revealed two polar positions.
• These paintings represent polar extremes of style.

類義語： opposite, opposed

よく使う表現： polar opposites, polar extremes, polar views

極性の

正負の電極や反対の磁極を持つ、またはそれらに関する。

やさしい英語で： Having or relating to separate positive and negative electrical ends, or opposite magnetic ends.

• Water is a polar molecule.
• The diagram shows a polar bond.
• The experiment measured polar effects in the material.

反対語： nonpolar

よく使う表現： polar molecule, polar bond, polar effects

極線

曲線の外の一点から引いた二本の接線の接点を結ぶ直線。

やさしい英語で： A line joining the two points where lines from one outside point touch a curve.

• Draw the polar of this point.
• The two contact points lie on the polar.
• We calculated the equation of the polar for the circle.

使い方： the polar of a point (The diagram shows the polar of point P.)

よく使う表現： polar of something, polar line, draw a polar