16-letter words containing p, a, n, t, o, l
- upsilon particle — the 20th letter of the Greek alphabet (Υ, υ).
- vegetable sponge — loofah (def 2).
- ventriculography — radiography of the ventricles of the heart after injection of a contrast medium
- voluntary helper — a person who aids or assists in a specified function of one's own accord and without compulsion or promise of remuneration
- well-compensated — to recompense for something: They gave him ten dollars to compensate him for his trouble.
- willow ptarmigan — a ptarmigan, Lagopus lagopus, of arctic and subarctic regions of the New and Old Worlds, having brown, mottled plumage in summer and white plumage in winter.
- windfall profits — Windfall profits are excessive profits with a non-business cause such as a natural disaster.
- xenotransplanted — Transplanted by xenotransplantation.