10-letter words starting with del
- delta iron — an allotrope of iron that exists between 1400°C and the melting point of iron and has the same structure as alpha iron
- delta team — an assault unit of highly trained and specialized U.S. troops that can be quickly dispatched to deal with terrorist action.
- delta wave — any of the slowest electrical brain waves, having frequencies less than four hertz and indicating, in adults, deep sleep or brain disease
- delta wing — a triangular sweptback aircraft wing
- deltiology — the collection and study of picture postcards
- delusional — having false or unrealistic beliefs or opinions: Senators who think they will get agreement on a comprehensive tax bill are delusional.
- delusively — tending to delude; misleading; deceptive: a delusive reply.
- delustrant — an agent which removes lustre from something