from The Century Dictionary.
- noun One of the wheel-like joints of encrinites, which occur in great profusion in certain limestones, and are commonly called screwstones, wheelstones, or St. Cuthbert's beads.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Paleon.) A fossil joint of a crinoid stem.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun paleontology A
fossil jointof a crinoid stem.
from Wiktionary, Creative Commons Attribution/Share-Alike License
en- + trochite
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