Definitions for iceboundˈaɪsˌbaʊnd
Random House Webster's College Dictionary
held fast or hemmed in by ice:
an icebound ship.
obstructed or shut off by ice:
an icebound harbor.
locked in by ice
completely surrounded by ice and therefore unmoveable
totally surrounded with ice, so as to be incapable of advancing; as, an icebound vessel; also, surrounded by or fringed with ice so as to hinder easy access; as, an icebound coast