19-letter words containing c, h, o, i, e, s
- trusteeship council — a United Nations body that supervises the government of a territory by a foreign country
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- what makes one tick — a slight, sharp, recurring click, tap, or beat, as of a clock.
- white-winged scoter — a blackish North American duck, Melanitta deglandi, having a white patch on each wing.