19-letter words containing c, h, y, a
- theoretical physics — abstract use of physics
- to bury the hatchet — If two people bury the hatchet, they become friendly again after a quarrel or disagreement.
- to change your mind — If you change your mind, or if someone or something changes your mind, you change a decision you have made or an opinion that you had.
- to change your tune — If you say that someone has changed their tune, you are criticizing them because they have changed their opinion or way of doing things.
- typographical error — an error in printed or typewritten matter resulting from striking the improper key of a keyboard, from mechanical failure, or the like.
- ultrahigh frequency — any frequency between 300 and 3000 megahertz. Abbreviation: UHF, uhf.
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- waste heat recovery — the use of heat that is produced in a thermodynamic cycle, as in a furnace, combustion engine, etc, in another process, such as heating feedwater or air
- wearable technology — a small computer or advanced electronic device that is worn or carried on the body: the trendiest wearable technologies.
- what-do-you-call-it — whachamacallit.