'icecap' definitions:

Definition of 'icecap'

From: WordNet
noun
A mass of ice and snow that permanently covers a large area of land (e.g., the polar regions or a mountain peak) [syn: icecap, ice cap]

Definition of 'icecap'

From: GCIDE
  • icecap \ice"cap`\ ([imac]s"k[a^]p`) n. a mass of ice and snow that permanently covers a large area of land (e.g., the polar regions or a mountain peak). [WordNet 1.5]