12-letter words containing a, o, r, i, s
- seronegative — showing no significant level of serum antibodies, or other immunologic marker in the serum, that would indicate previous exposure to the infectious agent being tested.
- seroreaction — any reaction occurring in serum.
- service road — frontage road.
- servicewoman — a woman who is a member of the armed forces of a country.
- shadow price — the calculated price of a good or service for which no market price exists
- share option — A share option is an opportunity for the employees of a company to buy shares at a special price.
- shared logic — the sharing of a central processing unit and associated software among several terminals
- shareholding — a holder or owner of shares, especially in a company or corporation.
- shoe repairs — repairs to shoes
- shooting war — open conflict between hostile nations involving direct military engagements.
- shopbreaking — the act of breaking into a shop
- short radius — the perpendicular distance from the centre of a regular polygon to a side
- short-acting — (of a drug) quickly effective, but requiring regularly repeated doses for long-term treatment, being rapidly absorbed, distributed in the body, and excreted
- short-haired — having short hair
- siderography — the art or technique of engraving on steel.
- sierra leone — an independent republic in W Africa: member of the Commonwealth of Nations; formerly a British colony and protectorate. 27,925 sq. mi. (72,326 sq. km). Capital: Freetown.
- sigma baryon — an unstable hyperon having positive, negative, or zero electric charge and strangeness −1. Symbol: Σ.
- signal board — a board for displaying electrically transmitted signals and indicating their source.
- signal corps — a branch of the army responsible for military communications, meteorological studies, and related work.
- signal tower — a tower from which railway signals are controlled or displayed
- significator — a planet deemed significant in astrology
- silk factory — plant where silk fabric is produced
- simhat torah — a Jewish festival, celebrated on the 23d day of Tishri, that marks the end of the annual cycle of Torah readings and the beginning of the next cycle
- sinanthropus — the genus to which Peking man was formerly assigned.
- sinistration — the quality or state of being left-handed.
- sir sandford — Mount, a mountain in SE British Columbia, Canada, in the Selkirk Mountains. 11,590 feet (3533 meters).
- six-yard box — On a football pitch, the six-yard box is the rectangular area marked in front of the goal.
- six-year-old — being six years in age
- sloganeering — Sloganeering is the use of slogans by people such as politicians or advertising agencies.
- smart cookie — intelligent or sharp-witted person
- smoking area — a designated area in which smoking is permitted
- sniff around — dog: try to pick up scent
- snowboarding — a board for gliding on snow, resembling a wide ski, to which both feet are secured and that one rides in an upright position.
- social order — structure or hierarchy of society
- sociographic — the branch of sociology that uses statistical data to describe social phenomena.
- socratically — of or relating to Socrates or his philosophy, followers, etc., or to the Socratic method.
- sofa surfing — (of a homeless person) the practice of staying temporarily with various friends and relatives while attempting to find permanent accommodation
- solar radius — the unit, equivalent to the radius of the sun, in which the radii of stars and other celestial objects are given.
- soldier crab — a small blue Australian estuarine crab of the Mictyris genus usually found in large numbers
- solidaristic — relating to solidarism
- solitariness — alone; without companions; unattended: a solitary passer-by.
- solitary bee — any of numerous bees, as the leaf-cutting bees, that do not live in a community.
- solway firth — an arm of the Irish Sea between SW Scotland and NW England. 38 miles (61 km) long.
- somatotropin — a hormone secreted by the anterior pituitary gland, that stimulates growth in humans.
- sophomorical — characteristic of a sophomore
- 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.
- sorting yard — sorting tracks.
- south africa — Republic of, a country in S Africa; member of the Commonwealth of Nations until 1961. 472,000 sq. mi. (1,222,480 sq. km). Capitals: Pretoria and Cape Town.
- south arabia — Protectorate of, a former protectorate of Great Britain in S Arabia, now part of the Republic of Yemen.