13-letter words containing e, n, f, o, i
- staff section — section (def 10b).
- staminiferous — bearing or having a stamen or stamens.
- state of mind — mental condition, mood
- step function — a function that is constant on each of a finite set of subintervals of its domain, the union of the subintervals being the domain.
- stoloniferous — producing or bearing stolons.
- sunflower oil — oil obtained from sunflower seeds
- superfetation — the fertilization of an ovum in a female mammal already pregnant.
- surface noise — extraneous noise caused by physical wear or a physical flaw on a phonograph record or in a pickup system, rather than by a flaw in the equipment.
- tale of genji — a novel (1001–20?) by Lady Murasaki, dealing with Japanese court life.
- teofilo otoni — a city in E central Brazil.
- testification — the act of testifying or giving testimony.
- tet offensive — an offensive by Vietcong and North Vietnamese forces against South Vietnamese and U.S. positions in South Vietnam, beginning on Jan. 31, 1968, the start of Tet.
- the following — the one or ones to be mentioned immediately
- the foregoing — the one or ones previously mentioned
- the offensive — an attitude or position of aggression
- thereinbefore — before that
- think less of — to have a lower opinion of
- think more of — to have a higher opinion of
- to perfection — impeccably, perfectly
- transfrontier — the part of a country that borders another country; boundary; border.
- unblindfolded — not blindfolded
- unciform bone — a small bone of the wrist
- under pain of — physical suffering or distress, as due to injury, illness, etc.
- undiscomfited — not discomfited; at ease
- unfashionable — observant of or conforming to the fashion; stylish: a fashionable young woman.
- unforeskinned — circumcised
- uninformative — not educational
- unpersonified — to attribute human nature or character to (an inanimate object or an abstraction), as in speech or writing.
- unrefined oil — oil that hasn't been refined or processed
- versification — the act of versifying.
- virgin forest — a forest in its natural state, before it has been explored or exploited by man
- waterflooding — (in oil, gas, or petroleum production) the practice of injecting water to maintain pressure in a reservoir and to drive the oil, etc towards the production wells
- waterproofing — Chiefly British. a raincoat or other outer coat impervious to water.
- wave function — a solution of a wave equation.
- well-informed — having extensive knowledge, as in one particular subject or in a variety of subjects.
- zf expression — (programming) (After Zermelo Fränkel set theory). David Turner's name for list comprehension.
- zone refining — a process of purifying any of various metals and other materials, as germanium or silicon, by passing it in bar form through an induction coil.