20-letter words containing f, a, n, c, i, u
- paper qualifications — qualifications gained through official examinations, etc, rather than through experience
- peaceful coexistence — competition without war, or a policy of peace between nations of widely differing political systems and ideologies, especially between Communist and non-Communist nations: peaceful coexistence between the U.S. and the Soviet Union.
- permonosulfuric acid — persulfuric acid (def 1).
- probability function — the function the values of which are probabilities of the distinct outcomes of a discrete random variable
- recuperative furnace — a furnace having its incoming air heated by exhaust gases, the passage of air and gases through the furnace being always in the same direction.
- regenerative furnace — a furnace in which the incoming air is heated by regenerators.
- shifting cultivation — a land-use system, esp in tropical Africa, in which a tract of land is cultivated until its fertility diminishes, when it is abandoned until this is restored naturally
- soft gelatin capsule — A soft gelatin capsule is a type of capsule that is usually used to contain medicine in the form of liquid or powder, and which dissolves more quickly than a hard gelatin capsule.
- specific conductance — conductivity (def 2).
- specific-conductance — conductivity (def 2).
- surface-active agent — any substance that when dissolved in water or an aqueous solution reduces its surface tension or the interfacial tension between it and another liquid.
- tchebycheff equation — a differential equation of the form (1 − x 2) d 2 y/dx 2 − x dy/dx + n 2 y = 0, where n is any nonnegative integer.
- too much information — I don't want to hear any more
- uncertificated share — a share of a mutual fund credited to the account of a shareholder without the physical issuance of a certificate evidencing ownership.
- unified screw thread — a screw thread system introduced for defence equipment (1939–44), in which the thread form and pitch were a compromise between British Standard Whitworth and American Standard Sellers: adopted by the International Standards Organization
- wardrobe malfunction — an embarrassing situation caused by the clothes a person is wearing
- whole-life insurance — a type of insurance with a savings element that is guaranteed to pay out on death provided premiums have been paid as required by the policy
- working-capital fund — a fund established to finance operating activities in an industrial enterprise.
- zone of accumulation — B horizon.