17-letter words containing d, a, n, r, u, f
- surface condenser — a device condensing steam or vapor by passing it over a cool surface.
- thermal diffusion — the separation of constituents, often isotopes, of a fluid under the influence of a temperature gradient.
- trapdoor function — a function defined from data by means of a mathematical procedure in such a way that it is easy to obtain the function when the data are known, but when the procedure and data are not known it becomes very difficult to determine the original data: used in cryptography, where the data are the characters of the plain text, or message, and the trapdoor function is the cryptogram.
- unclassified road — a road that has not been given a grade because it is of a basic standard
- vanilla-flavoured — having been flavoured with vanilla extract or essence
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.