13-letter words containing s, t, e, u, a
- without tears — presented so as to be easily assimilated
- x-ray burster — a celestial source from which bursts of x-rays are received.
- zinc sulphate — a colourless soluble crystalline substance usually existing as the heptahydrate or monohydrate: used as a mordant, in preserving wood and skins, and in the electrodeposition of zinc. Formula: ZnSO4