20-letter words containing a, b, o, m, s, u
- to burst into flames — If something bursts into flames or bursts into flame, it suddenly starts burning strongly.
- tobacco mosaic virus — a retrovirus causing mosaic disease in members of the nightshade family. Abbreviation: TMV.
- toothbrush moustache — a short narrow moustache, resembling the filaments of a toothbrush
- wilson cloud chamber — cloud chamber.