16-letter words containing p, o, t, a, l, e
- twofold purchase — a purchase using a double standing block and a double running block so as to give a mechanical advantage of four or five, neglecting friction, depending on whether the hauling is on the standing block or the running block.
- unapologetically — containing an apology or excuse for a fault, failure, insult, injury, etc.: An apologetic letter to his creditors explained the delay.
- 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
- walk a tightrope — be in a precarious position
- well-compensated — to recompense for something: They gave him ten dollars to compensate him for his trouble.
- xenotransplanted — Transplanted by xenotransplantation.