16-letter words containing e, p, l, u
- upper lough erne — a lough in Northern Ireland, fed by the river Erne
- upper palatinate — See under Palatinate (def 1).
- upsilon particle — the 20th letter of the Greek alphabet (Υ, υ).
- ventriculography — radiography of the ventricles of the heart after injection of a contrast medium
- verneuil process — a process for making synthetic rubies, sapphires, spinels, etc., by the fusion at high temperatures of powdered compounds.
- vinylidene group — the bivalent group C 2 H 2 , derived from ethylene.
- virtual particle — an elementary particle of transitory existence that does not appear as a free particle in a particular situation but that can transmit a force from one particle to another.
- visible spectrum — the range of wavelengths of electromagnetic radiation that is normally visible, from 380 to 760 nm.
- voluntary helper — a person who aids or assists in a specified function of one's own accord and without compulsion or promise of remuneration
- water lily tulip — a showy tulip, Tulipa kaufmanniana, of Turkestan, having spreading, white or pale-yellow flowers with yellow centers streaked with red.
- well-upholstered — (of a person) fat
- whited sepulcher — an evil person who feigns goodness; hypocrite. Matt. 23:27.
- whited sepulchre — hypocrite