Function: noun
Date: 1870
: a system of canals in echinoderms containing a circulating watery fluid that is used for the movement of the tentacles and tube feet
Function: noun
Date: 1870
: a system of canals in echinoderms containing a circulating watery fluid that is used for the movement of the tentacles and tube feet
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012