whitecoat

[hwahyt-koht, wahyt-]

noun

a baby seal, usually less than four weeks old and still having its initial white fur.

Origin of whitecoat

First recorded in 1545–55; white + coat

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Here and there was an old dog hood on a hummock; and there and here were a harp and a whitecoat on a flat pan.
Billy Topsail, M.D.
Norman Duncan