18-letter words containing o, a, p, e, c
- unfair competition — acts done by a seller to confuse or deceive the public with intent to acquire a larger portion of the market, as by cutting prices below cost, misleading advertising, selling a spurious product under a false identity, etc.
- unit magnetic pole — the unit of magnetic pole strength equal to the strength of a magnetic pole that repels a similar pole with a force of one dyne, the two poles being placed in a vacuum and separated by a distance of one centimeter.
- universal coupling — a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes.
- upper palaeolithic — the latest of the three periods of the Palaeolithic, beginning about 40 000 bc and ending, in Europe, about 12 000 bc: characterized by the emergence of modern man, Homo sapiens
- urban contemporary — popular dance music incorporating elements of rap, rhythm-and-blues, funk, and soul.
- vectorcardiography — a method of determining the direction and magnitude of the electrical forces of the heart.
- video compact disc — (storage) (VCD) A storage format used for film distribution.
- videotape recorder — a device for recording television programs on magnetic tape for delayed transmission or for storage.
- warehouse capacity — the amount of storage space in a warehouse
- wattless component — Electricity. reactive component.
- 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.