17-letter words containing b, u, n, d
- unpredictableness — not predictable; not to be foreseen or foretold: an unpredictable occurrence.
- urban development — the development or improvement of an urban area by building
- user brain damage — (humour) (UBD) A description (usually abbreviated) used to close a trouble report obviously due to utter cluelessness on the user's part. Compare pilot error; opposite: PBD; see also brain-damaged, PEBCAK.
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- zero-coupon bonds — Zero-coupon bonds are bonds with no coupons that do not pay interest, and are sold at a large discount from their face value.