pen.ˈtakrəˌnīt noun
( -s )
Etymology: New Latin Pentacrinus + English -ite
1. : a fossil of the genus Pentacrinus
2. : a Jurassic crinoid with star-shaped columnals
pen.ˈtakrəˌnīt noun
( -s )
Etymology: New Latin Pentacrinus + English -ite
1. : a fossil of the genus Pentacrinus
2. : a Jurassic crinoid with star-shaped columnals
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012