环极涡旋

環極渦旋
huánjíwōxuán
circumpolar vortex

CEDICT

Entry Composition

1 环 huán
  1. ring
  2. hoop
  3. loop
  4. (chain) link
  5. classifier for scores in archery etc
  6. to surround
  7. to encircle
  8. to hem in
2 极 jí
  1. extremely
  2. pole (geography, physics)
  3. utmost
  4. top
3 涡旋 wōxuán
  1. eddy
  2. vortex