17-letter words containing d, y, n, a, m, o
- stand on ceremony — to insist on or act with excessive formality
- superaerodynamics — the branch of aerodynamics that deals with gases at very low densities.
- sydenham's chorea — a form of chorea affecting children, often associated with rheumatic fever
- tridimensionality — having three dimensions.
- williams syndrome — an abnormality in the genes involved in calcium metabolism, resulting in learning difficulties
- yesterday morning — during the morning of the day preceding today