18-letter words containing f, l, i, p, a
- pilotless aircraft — an aircraft equipped for operation by radio or by robot control, without a human pilot aboard; drone.
- plane of incidence — a plane determined by a given ray, incident on a surface, and the normal at the point where the incident ray strikes the surface.
- play second fiddle — be considered less important
- political football — a political issue that is continually debated but has not yet been resolved
- pontifical college — the chief body of priests in ancient Rome.
- population figures — population totals; statistics relating to the size of populations
- portrait of a lady — a novel (1881) by Henry James.
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
- 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.
- primate of england — a title of the archbishop of Canterbury.
- provably difficult — The set or property of problems for which it can be proven that no polynomial-time algorithm exists, only exponential-time algorithms.
- reinforced plastic — plastic with fibrous matter, such as carbon fibre, embedded in it to confer additional strength
- 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-contemplation — the act or process of thinking about oneself or one's values, beliefs, behavior, etc.
- 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.
- soda-lime feldspar — plagioclase.
- stepping-off place — jumping-off place (def 2).
- the family compact — the ruling oligarchy in Upper Canada in the early 19th century
- to fall into place — If things fall into place, events happen naturally to produce a situation you want.
- to play favourites — to display favouritism
- wild passionflower — the maypop, Passiflora incarnata.
- wildlife programme — (esp on television) a documentary whose subject is wild animals in their natural habitat or undomesticated fauna and flora generally