Noah Webster
Watch-glass
WATCH-GLASS, noun [watch and glass.]
1. In ships, a half hour glass, used to measure the time of a watch on deck.
2. A concavo-convex glass for covering the face or dial of a watch.
WATCH-GLASS, noun [watch and glass.]
1. In ships, a half hour glass, used to measure the time of a watch on deck.
2. A concavo-convex glass for covering the face or dial of a watch.