17-letter words containing p, l, u, f
- self-perpetuating — continuing oneself in office, rank, etc., beyond the normal limit.
- self-priming pump — A self-priming pump is a pump that will clear its passages of air and start pumping.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- self-reproduction — the act or process of reproducing.
- separating funnel — a large funnel having a tap in its output tube, used to separate immiscible liquids
- sexual preference — Someone's sexual preference is the same as their sexual orientation.
- spanish influenza — the pandemic respiratory infection that spread throughout the world during 1917–18.
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- speech difficulty — a problem encountered in speaking
- strike-slip fault — a geological fault on which the movement is along the strike of the fault
- sulfurated potash — a yellowish-brown mixture consisting mainly of potassium polysulfides and potassium thiosulfate, used in treating mange.
- sulphur butterfly — sulfur butterfly.
- take upon oneself — to take the responsibility for; accept as a charge
- unprofessionalism — not professional; not pertaining to or characteristic of a profession.
- walleye surfperch — a common black and silvery surfperch (Hyperprosopon argenteum) found off the coast of California
- wave-cut platform — a flat surface at the base of a cliff formed by erosion by waves