The crossword solutions for the term 'Piece of Dust' are 'PARTICLE' with 8 letters. A PARTICLE is a minute piece or amount of something, such as dust, which is too small to be seen without the aid of a microscope. Dust particles are made up of tiny pieces of matter, such as dirt, pollen, and other materials. They can be found in the air, on surfaces, and in the soil. Dust particles can cause health problems if inhaled, so it is important to keep them under control.