12-letter words containing m, w, a
- world-famous — famous throughout the world: a world-famous film.
- yellow metal — a type of brass having about 60 per cent copper and 40 per cent zinc
- yellowhammer — a common European bunting, Emberiza citrinella, the male of which is marked with bright yellow.
- yukawa meson — a hypothetical elementary particle with finite rest mass, whose exchange between nucleons would account for the strong short-range forces between nucleons: subsequently identified as the pion.