17-letter words containing i, s, o, f
- sacrifice paddock — a grassed area allowed to be grazed completely, to be cultivated and resown later
- sacrificial anode — Chemistry. an anode that is attached to a metal object subject to electrolysis and is decomposed instead of the object.
- safety inspection — an inspection of a place carried out to ensure that it is safe and not dangerous
- safety precaution — a precaution that is taken in order to ensure that something is safe and not dangerous
- saint elmo's fire — corona discharge.
- san francisco bay — a bay in W California: the harbor of San Francisco; connected with the Pacific by the Golden Gate strait. 50 miles (80 km) long; 3–12 miles (5–19 km) wide.
- scarlet firethorn — a Eurasian evergreen, thorny shrub, Pyracantha coccinea, of the rose family, having white, hairy flower clusters and bright red berries.
- scientific method — a method of research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
- scientific theory — a coherent group of propositions formulated to explain a group of facts or phenomena in the natural world and repeatedly confirmed through experiment or observation: the scientific theory of evolution.
- self-annihilation — self-destruction; suicide.
- self-appreciation — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- self-commendation — the act of commending; recommendation; praise: commendation for a job well done.
- self-condemnation — the act of condemning.
- self-conditioning — Also called operant conditioning, instrumental conditioning. a process of changing behavior by rewarding or punishing a subject each time an action is performed until the subject associates the action with pleasure or distress.
- self-confirmation — the act of confirming.
- self-consecration — the act of setting oneself to a task or vocation without ordination by others or by a religious body.
- self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
- self-constituting — to compose; form: mortar constituted of lime and sand.
- self-dissociation — an act or instance of dissociating.
- self-emancipation — the act of emancipating.
- self-flagellation — the act or process of flagellating.
- self-incompatible — not capable of self-pollination.
- self-introduction — the act of introducing or the state of being introduced.
- self-presentation — an act of presenting.
- self-preservation — preservation of oneself from harm or destruction.
- self-purification — a natural process of purifying, as the ability of a body of water to rid itself of pollutants.
- self-recollection — the act or power of recollecting, or recalling to mind; remembrance.
- self-renunciation — renunciation of one's own will, interests, etc.
- self-reproduction — the act or process of reproducing.
- self-rising flour — Self-rising flour is flour that makes cakes rise when they are cooked because it has chemicals added to it.
- self-satisfaction — a usually smug satisfaction with oneself, one's achievements, etc.
- semi-professional — actively engaged in some field or sport for pay but on a part-time basis: semiprofessional baseball players.
- sense of occasion — If there is a sense of occasion when a planned event takes place, people feel that something special and important is happening.
- sidesaddle flower — a pitcher plant, Sarracenia purpurea.
- sign of the cross — a movement of the hand to indicate a cross, as from forehead to breast and left shoulder to right or, in the Eastern Orthodox Church, from right shoulder to left.
- significant other — Sociology. a person, as a parent or peer, who has great influence on one's behavior and self-esteem.
- silicon rectifier — a rectifier consisting of a semiconductor diode using crystalline silicon
- sinus of valsalva — any of the pouches of the aorta and the pulmonary artery opposite the flaps of the semilunar valves into which blood returning to the heart flows, closing the valves.
- sister of charity — a member of one of several congregations of sisters founded in 1634 by St. Vincent de Paul.
- sister of loretto — a member of a congregation of sisters founded at Loretto, Kentucky, in 1812 and engaged in educational and missionary works.
- sixty-fourth note — a note having one sixty-fourth of the time value of a whole note; hemidemisemiquaver.
- sixty-fourth rest — a rest equal in time value to a sixty-fourth note.
- skin of our teeth — a play (1942) by Thornton Wilder.
- smoke-filled room — a place, as a hotel room, for conducting secret negotiations, effecting compromises, devising strategy, etc.
- softvelocity inc. — (company) The distributors of the Clarion family of application development systems.
- software engineer — a person who writes computer programs
- south farmingdale — a town on central Long Island, in SE New York.
- south frigid zone — the part of the earth's surface between the Antarctic Circle and the South Pole.
- south west africa — a former name of Namibia.
- south-west africa — a former name of Namibia.