19-letter words containing h, u, m
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- vesicular exanthema — an infectious viral disease of swine, characterized by blisters on the snout, mucous membranes, and feet.
- von neumann machine — the stored-program computer developed by John von Neumann and his associates
- welsh mountain pony — a small sturdy but graceful breed of pony used mostly for riding, originally from Wales
- wouldn't harm a fly — If you say that someone wouldn't hurt a fly or wouldn't harm a fly, you are emphasizing that they are very kind and gentle.
- yeoman of the guard — a member of the bodyguard of the English sovereign, instituted in 1485, which now consists of 100 men, including officers, having purely ceremonial duties.
- yourdon methodology — (programming) The software engineering methodology developed by Edward Yourdon and colleagues in the 1970s and 1980s. "Yourdon methodology" is a generic term for all of the following methodologies: Yourdon/Demarco, Yourdon/Constantine, Coad/Yourdon.