19-letter words containing e, c, h, o, v
- velocity microphone — a microphone in which the output varies according to the instantaneous velocity of the air molecules in the incident sound waves.
- vinylidene chloride — a colorless, volatile, flammable liquid, C 2 H 2 Cl, that is copolymerized chiefly with vinyl chloride to form saran.
- von neumann machine — the stored-program computer developed by John von Neumann and his associates
- 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