18-letter words containing s, p, e, a, r, f
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
- prayer of manasses — a book of the Apocrypha.
- presumption of law — a presumption based upon a policy of law or a general rule and not upon the facts or evidence in an individual case.
- prince of darkness — Satan.
- programme of study — the prescribed syllabus that pupils must be taught at each key stage in the National Curriculum
- purchasing officer — the member of staff in an organization who is responsible for buying goods or products
- reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
- saint peter's fish — another name for tilapia, taken from a Bible story about Saint Peter catching a fish with a coin in its mouth
- sampling frequency — sample rate
- seafloor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- self-deprecatingly — in a self-deprecating manner
- self-disparagement — the act of disparaging.
- self-preoccupation — the state of being preoccupied.
- self-tapping screw — a screw designed to tap its corresponding female thread as it is driven.
- shatterproof glass — glass designed to resist shattering
- soda-lime feldspar — plagioclase.
- software backplane — (programming, tool) A CASE framework from Atherton.
- speak for yourself — If you say 'Speak for yourself' when someone has said something, you mean that what they have said is only their opinion or applies only to them.
- specrate_base_fp92 — (benchmark) A variant of SPECrate_fp92 that reports "baseline" results, using stricter run rules.
- spotted flycatcher — a European woodland songbird, Muscicapa striata, with a greyish-brown streaked plumage: family Muscicapidae (Old World flycatchers)
- sweptwing aircraft — an aircraft which has wings that are swept (usually) backwards
- take the wraps off — to reveal
- to play favourites — to display favouritism
- transfer passenger — a traveller who changes from one plane, train, or bus to another, or to another form of transport
- wild passionflower — the maypop, Passiflora incarnata.