A small mountain lake, especially one formed by glaciers.(noun)
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 "tarn" in a sentence
"The little mountain tarn below was almost dry, and the Sundew plants by its sides, which were wont to revel in the damp surrounding moss, had lost their nature altogether, and never now offered their coronet of sparkling drops to the admiration of those that passed."
" At the farther side of the tarn was a small island."
"The blue surface \ of the tarn was a mirror, reflecting the Otter as it circled around the bowl."