Zool.
a complex arrangement of muscles and calcareous teeth and plates forming an eversible organ in most echinoids, functioning in mastication.
[ so called from a reference by Aristotle to a sea urchin resembling in shape certain lanterns ]
Zool.
a complex arrangement of muscles and calcareous teeth and plates forming an eversible organ in most echinoids, functioning in mastication.
[ so called from a reference by Aristotle to a sea urchin resembling in shape certain lanterns ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012