arctic front

Proper noun

 * 1)  The semipermanent, semicontinuous front between the deep, cold arctic air and the shallower, basically less cold polar air of northern latitudes; generally comparable to the antarctic front of the southern hemisphere.

Translations

 * Portuguese: frente ártica
 * Romanian: front arctic

Noun

 * 1) A cold front of very cold arctic air advancing on somewhat less cold air.