18-letter words containing o, r, l, e
- rule of engagement — a directive issued by a military authority controlling the use and degree of force, especially specifying circumstances and limitations for engaging in combat.
- russian revolution — Also called February Revolution. the uprising in Russia in March, 1917 (February Old Style), in which the Czarist government collapsed and a provisional government was established.
- safety regulations — regulations or rules that are put in place to ensure a product, event, etc, is safe and not dangerous
- saturated solution — A saturated solution is a solution in which there is so much solute that if there was any more, it would not dissolve.
- schofield barracks — a town on central Oahu, in central Hawaii.
- scholarship holder — a person who, because of academic merit, receives financial aid for their studies
- school certificate — (in England and Wales between 1917 and 1951 and currently in New Zealand) a certificate awarded to school pupils who pass a public examination: the equivalent of GCSE
- seafloor spreading — a process in which new ocean floor is created as molten material from the earth's mantle rises in margins between plates or ridges and spreads out.
- seasonal promotion — Seasonal promotions are items marketed to customers at the appropriate time of year, such as coats in the winter and bathing suits in the summer.
- seasonal variation — season-related variation
- second-hand dealer — a person who deals in second-hand things, such as cars, or furniture
- secondary diagonal — a diagonal line or plane.
- secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
- selective abortion — the aborting of particular embryos for medical or social reasons
- self-certification — statement of sick leave
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- self-contradiction — an act or instance of contradicting oneself or itself.
- self-contradictory — an act or instance of contradicting oneself or itself.
- self-determination — determination by oneself or itself, without outside influence.
- self-fertilization — Botany. fertilization of an ovum of a plant by a male gamete from the same flower (opposed to cross-fertilization).
- self-glorification — a glorified or more splendid form of something.
- self-gratification — the act of pleasing or satisfying oneself, especially the gratifying of one's own impulses, needs, or desires.
- self-incrimination — the act of incriminating oneself or exposing oneself to prosecution, especially by giving evidence or testimony.
- self-instructional — pertaining to or constituting learning materials and conditions arranged so that students can proceed to learn on their own with little or no supervision.
- self-interrogation — the act of interrogating; questioning.
- self-mortification — the inflicting of pain or privation on oneself: He was certain that self-mortification was the only road to salvation.
- self-preoccupation — the state of being preoccupied.
- self-raising flour — flour with baking powder
- self-recrimination — the act of recriminating, or countercharging: Hope gave way to recrimination with both sides claiming the moral high ground.
- sell oneself short — If you sell someone short, you do not point out their good qualities as much as you should or do as much for them as you should.
- semi-microanalysis — any analytical method in which the weight of the sample is between 10 and 100 milligrams.
- senior high school — a school attended after junior high school and usually consisting of grades 10 through 12.
- september holidays — a period of time in September when people do not have to go to school, college or work
- set priority level — (SPL) The way traditional Unix kernels implement mutual exclusion by running code at high interrupt priority levels and thus blocking lower level interrupts.
- sexual intercourse — genital contact, especially the insertion of the penis into the vagina followed by orgasm; coitus; copulation.
- sexual orientation — one's natural preference in sexual partners; predilection for homosexuality, heterosexuality, or bisexuality.
- shatterproof glass — glass designed to resist shattering
- sheltered workshop — a place of employment for persons with disabilities where their rights are protected and their needs are met.
- short-tailed shrew — a grayish-black shrew, Blarina brevicauda, common in eastern North America, that has a tail less than half the length of the body.
- shrubby cinquefoil — a small shrub, Potentilla fruticosa, of the rose family, native to the Northern temperate region, having pinnate leaves and numerous, showy, bright-yellow flowers.
- shugart technology — Seagate Technology
- silvery cinquefoil — any of several plants belonging to the genus Potentilla, of the rose family, having yellow, red, or white five-petaled flowers, as P. reptans (creeping cinquefoil) of the Old World, or P. argentea (silvery cinquefoil) of North America.
- silvery spleenwort — a fern, Diplazium pycnocarpon, of eastern North America, having fronds from 20 to 30 inches (50.8 to 76.2 cm) long on yellowish-green stalks.
- simple enumeration — a procedure for arriving at empirical generalizations by haphazard accumulation of positive instances.
- sindbad the sailor — (in The Arabian Nights' Entertainments), a wealthy citizen of Baghdad who relates the adventures of his seven wonderful voyages.
- sir george gilbert — Barbara Ann, 1928–2012, Canadian figure skater.
- sixth-form college — (in England and Wales) a college offering A-level and other courses to pupils over sixteen from local schools, esp from those that do not have sixth forms
- slim hole drilling — Slim hole drilling is drilling a well in which at least 90 percent of the hole has a diameter of seven inches or less.
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- slow-motion replay — a showing again in slow motion of a sequence of action, esp of part of a sporting contest immediately after it happens