bitter (or bitterly) cold
He further found that there was an element which he termed boreal in a more intense degree, which amounted to about a fifteenth of the whole flora.
Of these 40 are boreal, 22 austral and 69 tropical.
north-western corner of the state, which lies in the Boreal zone.
pygmaeus), two bats (the long-eared and the boreal), three species of Vespertilio (V.
or Boreal branch of the yellow or Mongolic race.