from The Century Dictionary.
- noun In thermodynamics, a curve showing the pressure at which for any temperature a mixture of ice and water will be in stable equilibrium.
Sorry, no etymologies found.
But this ice-line gave the eye something to measure with, and when I looked at those leagues of frozen shore my spirits sank into deepest dejection at the thought of the vastness of the waters in whose heart I floated in my little boat.
They bore down upon her, and now took note that this sail of hers was ragged and frozen, so that it flapped like a jointed board, and that her rigging hung in all ways and untended, but stiff with rime; and drawing yet nearer, they saw an ice-line about her hull, so deep that her timbers seemed bitten through, and a great pile of frozen snow upon her poop, banked even above her tiller; but no helmsman, and no living soul upon her.
"When I think," replied Bolton, with a covetous sigh, "that in a month we might be back in Liverpool; we could soon clear the southern ice-line.