17-letter words containing a, f, r, o
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- waiting for godot — a play (1952) by Samuel Beckett.
- waiver of premium — a provision in a policy establishing specific conditions under which the policy will be kept in force without the policyholder's being required to continue to pay premiums.
- wars of the roses — the civil struggle between the royal house of Lancaster, whose emblem was a red rose, and the royal house of York, whose emblem was a white rose, beginning in 1455 and ending with the accession of Henry VII in 1485 and the union of the two houses.
- wave-cut platform — a flat surface at the base of a cliff formed by erosion by waves
- welfare economics — a branch of economics concerned with improving human welfare and social conditions chiefly through the optimum distribution of wealth, the relief or reduction of unemployment, etc.
- willow flycatcher — a North American flycatcher, Empidonax alnorum, of alder thickets and other moist areas, that has greenish-brown upper parts and whitish underparts and is almost indistinguishable except by voice from E. traillii (willow flycatcher)
- wind chill factor — A wind chill factor is a measure of the cooling effect of the wind on the temperature of the air.
- wind-chill factor — the apparent temperature felt on the exposed human body owing to the combination of temperature and wind speed.
- woman of the hour — a woman honored by a group.
- work-life balance — a situation in which one divides or balances one's time between work and activities outside of work: It's hard to achieve a reasonable work-life balance when you run your own business.
- x-ray diffraction — diffraction of x-rays by the regularly spaced atoms of a crystal, useful for determining the arrangement of the atoms.
- year of confusion — (in ancient Rome) the year of 445 days preceding the introduction, in 46 b.c., of the Julian calendar: lengthened to compensate for the cumulative errors of the Roman calendar.