glacier: A large mass of ice and snow that forms in areas where the rate of snowfall constantly exceeds the rate at which the snow melts: it moves slowly outward from the center of accumulation or down a mountain until it melts or breaks away;
(A large mass of; forms; L:in areas) (the rate of snowfall; exceeds; the rate at which the snow melts: it moves slowly outward from the center of accumulation or down a mountain until it melts or breaks away;; L:areas; T:constantly) (it; moves slowly outward; T:until it melts or breaks away) (it; melts; ) (it; breaks away; )
A large mass of the rate of snowfall it it it
forms exceeds moves slowly outward melts breaks away
L:in areas
the rate at which the snow melts: it moves slowly outward from the center of accumulation or down a mountain until it melts or breaks away; L:areas T:constantly
T:until it melts or breaks away