I liked this description, encountered yet again in The Orchard Keeper, and wanted to copy it down even before I got to this new word, which thankfully gave me a reason to post it.
Millrace – a canal in which water flows to and from a mill wheel
“… they went out the kitchen door into the new morning, the air clear and cold as springwater, shreds of mist lifting off the mountain above them and light pouring through the gap like a millrace.”
Jonas David 