21-letter words containing a, f, i, c, o, n
- traffic control tower — an elevated structure for the visual observation and control of the air and ground traffic at an airport
- tumor necrosis factor — a protein, produced in humans and other animals, that is destructive to cells showing abnormally rapid growth: identical with cachectin. Abbreviation: TNF.
- uniform resource name — (web) (URN, previously Uniform/Universal Resource Number) 1. Any URI which is not a URL. 2. A particular scheme which is currently (1991-4) under development by the IETF, which should provide for the resolution using Internet protocols of names which have a greater persistence than that currently associated with Internet host names or organisations (as used in URLs). Uniform Resource Names will be URI schemes that improve on URLs in reliability over time, including authenticity, replication, and high availability. When defined, a URN in sense 1 will be an example of a URN in sense 2.
- union of south africa — former name for South Africa, Republic of.
- university of iceland — (body, education) The Home of Fjolnir.
- volunteers of america — a religious reform and relief organization, similar to the Salvation Army, founded in New York City in 1896 by Ballington Booth, son of William Booth, the founder of the Salvation Army. Abbreviation: VOA.
- warm silence software — A small company run by(?) Robin Watts, producing software for the Acorn Archimedes.
- water of constitution — water present in a molecule that cannot be removed without disrupting the molecule.
- without qualification — If something is stated or accepted without qualification, it is stated or accepted as it is, without the need for any changes.