расщелинаfissura [ae, f];
кнопкаorbiculus [i, m]
работататьlaborare [1];operari
exemplum [i, n] (specimen [inis, n]) primarium (originarium);exemplar [is, n] primigenium;scriptum [i, n] authenticum;originale [is, n];autographum [i, n];archetypum [i, n];