Laurentide


Lau·ren·tide

L5077050 (lôr′ən-tīd′, lŏr′-)adj. Of or relating to a large ice sheet that covered most of the region that now comprises Canada and the northern United States during much of the Pleistocene Epoch and that gradually melted between 18,000 and 8,000 years ago.
[After French les Laurentides, the Laurentian Mountains.]