/perr"meuh frawst', -frost'/ , n.
(in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol .
[ 1943; PERMA(NENT) + FROST ]
/perr"meuh frawst', -frost'/ , n.
(in arctic or subarctic regions) perennially frozen subsoil. Also called pergelisol .
[ 1943; PERMA(NENT) + FROST ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012