15-letter words containing a, g, s, i
- ramrod straight — having a very straight figure
- random sampling — a method of selecting a sample (random sample) from a statistical population in such a way that every possible sample that could be selected has a predetermined probability of being selected.
- range paralysis — Marek's disease.
- raster graphics — (graphics) Computer graphics in which an image is composed of an array of pixels arranged in rows and columns. Opposite: vector graphics.
- reading glasses — spectacles
- reality testing — the objective evaluation of situations, defective in certain psychoses, that enable one to distinguish between the external and the internal worlds and between the self and the nonself.
- registered mail — prepaid first-class mail that has been recorded at a post office prior to delivery for safeguarding against loss, theft, or damage during transmission.
- registered name — the official or trademark name of something such as a product or company
- regulatory risk — a risk to which private companies are subject, arising from the possibility of legislation or regulations that will affect business being adopted by a government
- relapsing fever — one of a group of fevers characterized by relapses, occurring in many tropical countries, and caused by several species of spirochetes transmitted by several species of lice and ticks.
- remonstratingly — in an remonstrating or dissenting manner
- revenue sharing — the system of disbursing part of federal tax revenues to state and local governments for their use.
- reversing falls — a series of rapids in the Saint John River, New Brunswick, Canada, the flow of which regularly reverses itself owing to the force an incoming tide
- reviewing stand — A reviewing stand is a special raised platform from which military and political leaders watch military parades.
- revolving stage — a circular platform divided into segments enabling multiple theater sets to be put in place in advance and in turn rotated into view of the audience.
- rhesus negative — relating to blood not containing Rhesus antigen D
- ribier (grapes) — a large, black variety of European or Californian table grape (Vitis vinifera)
- rigel kentaurus — Alpha Centauri.
- right ascension — the arc of the celestial equator measured eastward from the vernal equinox to the foot of the great circle passing through the celestial poles and a given point on the celestial sphere, expressed in degrees or hours.
- right of asylum — the right of alien fugitives to protection or nonextradition in a country or its embassy.
- right of search — the privilege of a nation at war to search neutral ships on the high seas for contraband or other matter, carried in violation of neutrality, that may subject the ship to seizure.
- rigil kentaurus — Astronomy. Alpha Centauri.
- risk management — the technique or profession of assessing, minimizing, and preventing accidental loss to a business, as through the use of insurance, safety measures, etc.
- rite de passage — rite of passage.
- rite of passage — Anthropology. a ceremony performed to facilitate or mark a person's change of status upon any of several highly important occasions, as at the onset of puberty or upon entry into marriage or into a clan.
- roaring forties — the stormy oceanic areas between 40° and 50° south latitude
- robert guiscard — Robert [French raw-ber] /French rɔˈbɛr/ (Show IPA), (Robert de Hauteville) c1015–85, Norman conqueror in Italy.
- rogation sunday — the fifth Sunday after Easter; it sees the start of the supplications that are continued during the following Monday, Tuesday and Wednesday
- roger bannister — Sir Roger (Gilbert) born 1929, English track and field athlete: first to run a mile in less than four minutes.
- rolling meadows — a city in NE Illinois, near Chicago.
- rolling targets — a series of targets which are reviewed periodically so that they always extend for the same period into the future
- rowland heights — a city in SW California, near Los Angeles.
- royal engineers — a branch of the British army that undertakes the building of fortifications, mines, bridges, and other engineering works
- running repairs — repairs, as to a machine or vehicle, that are minor and can be made with little or no interruption in the use of the item
- rural sociology — the sociological study of life in rural areas and the effects of ruralization.
- sagittal suture — a serrated line on the top of the skull that marks the junction of the two parietal bones
- saguia el hamra — the N part of Western Sahara.
- saigon cinnamon — the aromatic inner bark of any of several East Indian trees belonging to the genus Cinnamonum, of the laurel family, especially the bark of C. zeylanicum (Ceylon cinnamon) used as a spice, or that of C. loureirii (Saigon cinnamon) used in medicine as a cordial and carminative.
- saint augustine — Saint, a.d. 354–430, one of the Latin fathers in the early Christian Church; author; bishop of Hippo in N Africa.
- salivary glands — any of several glands, as the submaxillary glands, that secrete saliva.
- santa gertrudis — one of an American breed of beef cattle, developed from Shorthorn and Brahman stock for endurance to torrid temperatures.
- sarcoptic mange — mange caused by burrowing mites of the genus Sarcoptes.
- sausage machine — a machine for making sausages
- sausage turning — turning of members to resemble a continuous row of sausages flattened at the ends.
- sauvignon blanc — a white grape grown primarily in France and California.
- savings account — a bank account on which interest is paid, traditionally one for which a bankbook is used to record deposits, withdrawals, and interest payments.
- saviour sibling — a child conceived through IVF and screened for compatibility with a terminally or seriously ill sibling in order to provide organ or cell donations as a form of treatment
- saw-edged knife — a knife with a serrated edge
- scaling circuit — an electronic device or circuit that aggregates electric pulses and gives a single output pulse for a predetermined number of input pulses
- scanning device — any of various devices used in medical diagnosis to obtain an image of an internal organ or part