15-letter words containing r, a, g, o
- slavonian grebe — a N Eurasian or N American grebe with reddish underside and a black and gold crest; Podiceps auritus
- smoking-related — (of a disease, illness, etc) caused by smoking tobacco, etc
- social drinking — the practice of drinking alcohol occasionally and usually only in social situations
- social heritage — the entire inherited pattern of cultural activity present in a society.
- social register — a directory or list of people prominent in the fashionable society of a given area
- social-drinking — a person who drinks alcoholic beverages usually in the company of others and is in control of his or her drinking.
- source language — the language in which a text appears that is to be translated into another language. Compare target language (def 1).
- south glamorgan — a county in SE Wales. 161 sq. mi. (416 sq. km).
- spark generator — an alternating-current power source with a condenser discharging across a spark gap.
- spawning ground — a place where fish deposit their eggs for fertilization
- spermatogenesis — the origin and development of spermatozoa.
- sporting chance — an even or fair opportunity for a favorable outcome in an enterprise, as winning in a game of chance or in any kind of contest: They gave the less experienced players a sporting chance by handicapping the experts.
- stage direction — an instruction written into the script of a play, indicating stage actions, movements of performers, or production requirements.
- staggered hours — a system of working in which the employees of an organization do not all arrive and leave at the same time, but have large periods of overlap
- stamford bridge — a village in N England, east of York: site of a battle (1066) in which King Harold of England defeated his brother Tostig and King Harald Hardrada of Norway, three weeks before the Battle of Hastings
- stamping ground — a habitual or favorite haunt.
- standing orders — Military. (formerly) a general order always in force in a command and establishing uniform procedures for it; standard operating procedure.
- star of courage — a Canadian award for bravery
- start something — to cause a disturbance or trouble
- starting blocks — the rigid blocks adjustable at an angle and mounted on a track against which a runner's shoes are placed to aid in starting
- starting pistol — a pistol used to give the signal to start a race
- steam generator — steam-producing power plant
- steam reforming — a process in which methane from natural gas is heated, with steam, usually with a catalyst, to produce a mixture of carbon monoxide and hydrogen used in organic synthesis and as a fuel
- stereologically — by way of stereology or in a stereological manner
- storage battery — a voltaic battery consisting of two or more storage cells.
- storage disease — a metabolic disorder characterized by excessive storage in certain cells of normal metabolic intermediates, as fats, iron, and carbohydrates.
- straightforward — going or directed straight ahead: a straightforward gaze.
- suborganization — an organization within a larger organization
- sugarcane borer — the larva of the pyralid moth, Diatraea saccharalis, a serious pest of sugarcane, corn, rice, and sorghums.
- surgeon general — the chief of medical services in one of the armed forces.
- swallow-tanager — a tropical American bird, Tersina viridis, related to the true tanagers but with longer, swallowlike wings.
- tarn-et-garonne — a department in S France. 1440 sq. mi. (3730 sq. km). Capital: Montauban.
- telephotography — photography of distant objects, using a telephoto lens.
- terra incognita — an unknown or unexplored land, region, or subject.
- tetrasporangium — a sporangium containing four asexual spores.
- thalassographer — a person who studies the sea; an oceanographer
- thalassographic — relating to thalassography
- thanks offering — an offering made as an expression of thanks to God
- the anglo-irish — the inhabitants of Ireland of English birth or descent
- the greater dog — the constellation Canis Major
- the perigordian — the Perigordian culture
- the working man — working class people collectively
- the wrong track — the incorrect line of investigation, inquiry, etc
- theory of games — game theory.
- thermobarograph — a device that simultaneously records the temperature and pressure of the atmosphere
- thermogeography — the study of the geographical variation and distribution of temperature.
- thought pattern — habitual way of thinking
- thought reading — mind reading.
- thraco-phrygian — a hypothetical branch of Indo-European implying a special genetic affinity between the meagerly attested Thracian and Phrygian languages.
- through traffic — traffic which continues on a road or highway rather than crossing onto a different road