释义 |
del·tid·i·um \ ̷ ̷ˈ ̷ ̷dēəm\ noun (plural deltid·ia \-dēə\) Etymology: New Latin, from Greek delta + New Latin -idium 1. : a plate partly or wholly closing the delthyrium of certain brachiopods — called also pseudodeltidium 2. : a pair of plates not homologous with the pseudodeltidium that performs the same function in other brachiopods — called also deltidial plates |