19-letter words containing a, c, u, s, o, r
- tussock caterpillar — the larva of a tussock moth.
- ultramicrochemistry — the branch of microchemistry dealing with minute quantities of material weighing one microgram or less.
- ultrasonic cleaning — the use of ultrasound to vibrate a piece to be cleaned while the piece is immersed in a cleaning fluid. The process produces a very high degree of cleanliness, and is used for jewellery and ornately shaped items
- under consideration — being deliberated
- upper carboniferous — Pennsylvanian (defs 2, 4).
- vaginal intercourse — intercourse involving insertion of the penis into the vagina
- volumetric analysis — determination of the concentration, by volume, of a substance in a solution, as by titration.
- young conservatives — the youth section of the United Kingdom Conservative Party until 1998
- zero-hours contract — an employment contract which does not oblige the employer to provide regular work for the employee, but requires the employee to be on call in the event that work becomes available