23-letter words containing p, r, o, f, a
- refuse disposal service — a place or facility where rubbish and waste can be disposed
- retrolental fibroplasia — an unusual eye disease occurring in premature infants, usually from being given high concentrations of oxygen, which causes abnormal formation of fibrous tissue behind the lens and often results in blindness.
- self-addressed envelope — addressed to self
- separation of variables — a grouping of the terms of an ordinary differential equation so that associated with each differential is a factor consisting entirely of functions of the independent variable appearing in the differential.
- software developers kit — (jargon, product) (SDK, or "Software Development Kit") Software provided by a software vendor to allow their products to be used with those of other software vendors.
- stereospecific catalyst — a catalyst for stereospecific chemical reactions
- the chamber of deputies — the lower legislative assembly in some parliaments
- the department of state — the United States federal department concerned with foreign policy
- the teaching profession — the profession of a teacher
- to keep a straight face — If you manage to keep a straight face, you manage to look serious, although you want to laugh.
- to play for high stakes — to gamble on something very important
- unipress software, inc. — (company) A developer and distributor of Unix software. They produce PC-UNIX connectivity software, development tools and applications and provide technical support and maintenance, porting services, training and consulting.
- wordperfect corporation — (company) The original developers of the WordPerfect word processor and a variety of other applications for personal computers. WordPerfect was founded in Provo, Utah, USA in 1979 by Alan Ashton and Bruce Bastion as "Satellite Software International". The company name was changed to Wordperfect Corporation in 1986. The company was bought by Novell, Inc. in 1994, who then sold it to Corel Corporation in 1996.