Atomizer/ˈætəmaɪzər/ Definition 1 of 2Pro Tip 1/3Perfume Application The word 'atomizer' often refers to using perfume without wasting it. She bought a new atomizer for her favorite scent. Pro Tip 2/3Fine Mist 'Atomizer' implies a very fine spray, not large drops or a stream. The artist used an atomizer to create a gentle mist of paint. Pro Tip 3/3Even Coverage An atomizer is used when even distribution of liquid is needed. He used a plant atomizer to evenly distribute water on the leaves.