18-letter words containing p, o, c, a
- warehouse capacity — the amount of storage space in a warehouse
- wattless component — Electricity. reactive component.
- world championship — an international competition in a particular sport or activity for people all around the world
- x-ray spectrometer — a spectrometer using x-rays to activate the inner electrons of an atom in order to separate and identify the chemical constituents of a substance and their concentrations.
- x-ray spectrometry — the use of an x-ray spectrometer.