極きょく夜やきょくやMeanings1nounpolar nightRefers to the period in polar regions when the sun remains below the horizon for more than 24 hours. Contrasts with 白夜 (midnight sun).See also: 白夜北ほっ極きょく圏けんでは冬ふゆに極きょく夜やが続つづく。In the Arctic Circle, the polar night continues during winter.
