JEWS-STONE, noun The clavated spine of a very large egg-shaped sea urchin petrified. It is a regular figure, oblong and rounded, about three quarters of an inch in length, and half an inch in diameter. Its color is a pale dusky gray, with a tinge of dusky red.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI