noun
: a system of vessels in echinoderms containing a watery fluid that is analogous to blood, is used for the movement of tentacles and tube feet, and may also function in excretion and respiration
noun
: a system of vessels in echinoderms containing a watery fluid that is analogous to blood, is used for the movement of tentacles and tube feet, and may also function in excretion and respiration
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012