anchor ice

American  

noun

1. ice formed below the surface of a body of water that attaches either to a submerged object or to the bottom.

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anchor ice British  

noun

1. ice that forms at the bottom of a lake or river

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Etymology

Origin of anchor ice

An Americanism dating back to 1805–15

Example Sentences

The days fled swiftly by; the hills thrust their scarred sides up through the melting snow; the open sea showed black beyond the rim of anchor ice.

From The Crimson Gardenia and Other Tales of Adventure by Beach, Rex Ellingwood

Our oxen are often very reluctant to enter the water while the anchor ice runs, and the cold has already begun to congeal its surface.

From Forest Life and Forest Trees: comprising winter camp-life among the loggers, and wild-wood adventure. with Descriptions of lumbering operations on the various rivers of Maine and New Brunswick by Springer, John S.