polar

polaire

Qui concerne les régions froides autour du pôle Nord ou du pôle Sud.

En anglais simple : 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.

Expressions courantes : polar bear, polar ice, polar region

opposé, polaire

Qui se situe à l’extrême opposé concernant des idées, des qualités ou des opinions.

En anglais simple : 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.

Synonymes : opposite, opposed

Expressions courantes : polar opposites, polar extremes, polar views

polaire

Qui possède des pôles électriques positifs et négatifs distincts, ou des pôles magnétiques opposés, ou les concerne.

En anglais simple : 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.

Contraires : nonpolar

Expressions courantes : polar molecule, polar bond, polar effects

polaire

Droite reliant les deux points où les tangentes issues d’un même point extérieur touchent une courbe.

En anglais simple : 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.

Comment l'utiliser : the polar of a point (The diagram shows the polar of point P.)

Expressions courantes : polar of something, polar line, draw a polar