from the GNU version of the Collaborative International Dictionary of English
- n. A genus of small spiral fresh-water gastropods having an operculum.
Sorry, no etymologies found.
Pronkssõdurit peaks hakkama jooksvalt teisaldama kõrge kuritegevustasemega piirkondadesse ja laskma politseil seda edasi valvata.
In the fresh water chalk formation of Steinheim, near Heidenheim, in Würtemberg, scientists have found, on the same place, in an uninterrupted series of strata, the snail valvata or paludina multiformis in all imaginable transitions -- from the flat winding, showing the form of a chess-board, up to the sharp form of a tower.
Valvate or valved (valvata), when as they are about to expand they are placed like the glumes in grafles.