Function: noun
Date: 1887
: a tube in many echinoderms that contains calcareous deposits and leads from the madreporite to the ring of the water-vascular system surrounding the mouth
Function: noun
Date: 1887
: a tube in many echinoderms that contains calcareous deposits and leads from the madreporite to the ring of the water-vascular system surrounding the mouth
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012