16-letter words containing p, t, i, l
- two-tailed pasha — a distinctive vanessid butterfly of S Europe, Charaxes jasius, having mottled brown wings with a yellow-orange margin and frilled hind edges
- typhoid bacillus — the bacterium Salmonella typhosa, causing typhoid fever.
- ultracrepidarian — noting or pertaining to a person who criticizes, judges, or gives advice outside the area of his or her expertise: The play provides a classic, simplistic portrayal of an ultracrepidarian mother-in-law.
- ultramicroscopic — an instrument that uses scattering phenomena to detect the position of objects too small to be seen by an ordinary microscope.
- unapologetically — containing an apology or excuse for a fault, failure, insult, injury, etc.: An apologetic letter to his creditors explained the delay.
- undercapitalized — having insufficient capital for the efficient operation of a commercial enterprise
- underpitch vault — a construction having a central vault intersected by vaults of lower pitch.
- unissued capital — authorized capital that has not yet been issued as shares
- unparticularized — to make particular.
- unpredictability — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- unproportionally — having due proportion; corresponding.
- up with the lark — up early in the morning
- 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
- 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.
- vitruvius pollio — Marcus, flourished 1st century b.c, Roman architect, engineer, and author.
- walk a tightrope — be in a precarious position
- water lily tulip — a showy tulip, Tulipa kaufmanniana, of Turkestan, having spreading, white or pale-yellow flowers with yellow centers streaked with red.
- well-appreciated — to be grateful or thankful for: They appreciated his thoughtfulness.
- west springfield — a city in SW Massachusetts, near Springfield.
- whiptail wallaby — a wallaby of NE Australia, Macropus parryi, with a long slender tail
- whited sepulcher — an evil person who feigns goodness; hypocrite. Matt. 23:27.
- whited sepulchre — hypocrite
- will-o'-the-wisp — ignis fatuus (def 1).
- 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.
- world exposition — world's fair.
- yah-boo politics — adversarial politics in which politicians constantly deride their opponents and dismiss everything suggested by them
- zenith telescope — a telescope mounted to point only at the zenith, used at some observatories for measuring time by the stars.