serac

Meanings

1. Often sérac: a hard, cone-shaped, pale green, strongly flavoured cheese from Switzerland made from skimmed cow milk and blue fenugreek (Trigonella caerulea); Schabziger, Sapsago. It is usually eaten grated, mixed with butter, or in a fondue.
2. A sharp tower of ice formed by intersecting crevasses of a glacier.

Etymology

From Swiss French sérac (“kind of cheese; sharp tower of ice”), from Franco-Provençal sera, seré, from Latin seraceum, from serum (“whey”), from Proto-Indo-European *ser- (“to flow, run”). Sense 2 is from the resemblance of the towers of ice to the cheese, which tends to cleave into rectangular pieces.