Free of ice and open to travel or navigation: an ice-free channel in the river. (adjective)
Marked by a lack of obstructive ice: a three-month ice-free period during the summer. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "ice-free" in a sentence
"The 5 Arctic coastal states (Canada, USA, Norway, Russia and Denmark, which is responsible for the external affairs of Greenland) are conveting the increasingly ice-free and pristine waters of the Arctic as the next oil bonanza."
"We still expect to see ice-free summers sometime in the next few decades."
"By 15,500 years ago, the ice-free corridor, that land corridor connecting Alaska with the mainland of the United States, was closed."