15-letter words containing p, r, e, t, f
- self-protection — protection of oneself or itself.
- self-respecting — You can use self-respecting with a noun describing a particular type of person to indicate that something is typical of, or necessary for, that type of person.
- self-supporting — the supporting or maintaining of oneself or itself without reliance on outside aid.
- simple fraction — a ratio of two integers.
- simple fracture — a fracture in which the bone does not pierce the skin.
- spanish trefoil — alfalfa.
- spare no effort — do all you can
- special feature — an article differing from the normal format and focusing on a particular topic
- spirits of wine — alcohol (def 1).
- stiff upper lip — stoicism
- sulfite process — a process for making wood pulp by digesting wood chips in an acid liquor consisting of sulfurous acid and a salt, usually calcium bisulfite.
- super-efficient — performing or functioning in the best possible manner with the least waste of time and effort; having and using requisite knowledge, skill, and industry; competent; capable: a reliable, efficient assistant.
- theory of types — a theory advanced by Bertrand Russell to avoid the liar paradox, Russell's paradox, etc, in which a class of expressions or of the entities they represent can all enter into the same syntactic relations
- traffic pattern — Aeronautics. a system of courses about an airfield that aircraft are assigned to fly when taking off, landing, or preparing to land.
- treaty of paris — a treaty of 1763 signed by Britain, France, and Spain that ended their involvement in the Seven Years' War
- trifluoperazine — a compound, C 21 H 24 F 3 N 3 S, used as an antipsychotic.
- unfair practice — unfair competition.
- upright freezer — a freezer that is tall rather than wide
- venus's-flytrap — a carnivorous plant, Dionaea muscipula, native to bogs of North and South Carolina, having roundish leaves with two lobes that close like a trap when certain delicate hairs on them are irritated, as by a fly: the range is now reduced, though the plants are still locally abundant.
- weatherproofing — Present participle of weatherproof.