delthyrium

About 0.01 uses per million words.

Meaning

1. noun The opening between the beak and the hinge in certain brachiopods, through which the pedicle passes.

Similar words

pedicle dactylethra brachidium rhynchostome propodium empodium rhynchodaeum peritreme chilidium dactylopore

Often followed by

is and open of closed in