sand canal
Noun
Meaning
sand canal (plural sand canals)
(zoology, dated) A tubular vessel having a calcareous coating, and connecting the oral ambulacral ring with the madreporic tubercle. It appears to be excretory in function.
Noun
sand canal (plural sand canals)
(zoology, dated) A tubular vessel having a calcareous coating, and connecting the oral ambulacral ring with the madreporic tubercle. It appears to be excretory in function.