17-letter words containing p, r, e, i, n, f
- 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.
- semi-professional — actively engaged in some field or sport for pay but on a part-time basis: semiprofessional baseball players.
- separating funnel — a large funnel having a tap in its output tube, used to separate immiscible liquids
- spatial frequency — the measure of fine detail in an optical image in terms of cycles per millimetre
- spiritus frumenti — whiskey.
- springfield rifle — a single-shot, breechloading .45-caliber rifle used by the U.S. Army from 1867 to 1893.
- terminal platform — (in the oil industry) an offshore platform from which oil or gas is pumped ashore through a pipeline
- traffic policeman — a policeman controlling traffic, esp while stationed at an intersection, or enforcing traffic regulations
- unprofessionalism — not professional; not pertaining to or characteristic of a profession.