12-letter words containing a, c, t, e, o
- slide-action — (of a rifle or shotgun) having a lever that when slid back and forth ejects the empty case and cocks and reloads the piece.
- slot machine — a gambling machine operated by inserting coins into a slot and pulling a handle that activates a set of spinning symbols on wheels, the final alignment of which determines the payoff that is released into a receptacle at the bottom.
- smallclothes — men's close-fitting knee breeches of the 18th and 19th centuries
- smart cookie — intelligent or sharp-witted person
- smooth-faced — beardless; smooth-shaven.
- snake doctor — South Midland and Southern U.S. a dragonfly.
- snotty-faced — having visible nasal mucus on the face
- snowshoe cat — a breed of cat with soft short hair, blue eyes, an inverted V-shaped marking on the face, and white feet
- soft chancre — chancroid.
- somatic cell — one of the cells that take part in the formation of the body, becoming differentiated into the various tissues, organs, etc.
- somatotensic — (of certain plants that are eaten as food) restoring equilibrium
- somnifacient — causing or inducing sleep.
- sophisticate — a sophisticated person.
- sorbefacient — inducing absorption
- sorosilicate — any of the silicates in which each silicate tetrahedron shares one of its four oxygen atoms with a neighboring tetrahedron, the ratio of silicon to oxygen being two to seven.
- spatter cone — a low, steep-sided volcanic cone built up of droplets or blobs of lava erupted from a fissure or vent.
- special sort — a character, such as an accented letter, that is not a usual member of any font
- speciational — relating to speciation
- spectatorial — a person who looks on or watches; onlooker; observer.
- spectrograph — a spectroscope for photographing or producing a representation of a spectrum.
- spermatocele — a swelling of the testicle
- spermatocide — spermicide.
- spermatocyte — a male germ cell (primary spermatocyte) that gives rise by meiosis to a pair of haploid cells (secondary spermatocytes) that give rise in turn to spermatids.
- sphacelation — the process of mortification
- spirochaetal — resulting from spirochaetes
- sport jacket — A sport jacket is the same as a sport coat.
- sportscaster — A sportscaster is a radio or television broadcaster who describes or comments on sporting events.
- spotted cavy — paca.
- stage pocket — one of several metal boxes placed backstage in the floor (floor pocket) or wall of a theater and containing jacks for electric cables used in lighting units.
- stapedectomy — a microsurgical procedure to relieve deafness by replacing the stapes of the ear with a prosthetic device.
- star-crossed — thwarted or opposed by the stars; ill-fated: star-crossed lovers.
- state police — a police force under state authority rather than under the authority of a city or county in the state.
- state school — A state school is a school that is controlled and funded by the government or a local authority, and which children can attend without having to pay.
- stegocarpous — (of a moss) belonging to the division Stegocarpi, having an operculate capsule
- stenographic — the art of writing in shorthand.
- stercoranism — the belief that the consecrated Eucharistic elements, the bread and wine, are subject to decay and pass through the body like other ingested things
- stercoranist — a person who believes in stercoranism
- stereoacuity — the ability of a person to see objects as separate entities along a range of distances
- stereocamera — a stereoscopic camera.
- stereoptican — a projector usually consisting of two complete lanterns arranged so that one picture appears to dissolve while the next is forming.
- stereotactic — movement of an organism in response to contact with a solid.
- sternocostal — of, relating to, or situated between the sternum and ribs.
- stipulaceous — of, relating to, having, resembling, or living on stipules
- stock market — a particular market where stocks and bonds are traded; stock exchange.
- stock saddle — Western saddle.
- stomach ache — pain in gut
- storage cell — a cell whose energy can be renewed by passing a current through it in the direction opposite to that of the flow of current generated by the cell.
- storm cellar — a cellar or underground chamber for refuge during violent storms; cyclone cellar.
- stottie cake — a flat round loaf
- stupefaction — the state of being stupefied; stupor.