/krip'teuh zoh"on/ , n.
an extinct genus of algae from Precambrian and Cambrian times, forming irregularly hemispherical fossil colonies composed of layers of limy precipitate.
[ 1883; ]
/krip'teuh zoh"on/ , n.
an extinct genus of algae from Precambrian and Cambrian times, forming irregularly hemispherical fossil colonies composed of layers of limy precipitate.
[ 1883; ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012