19-letter words containing o, l, r, s
- flannelmouth sucker — a sucker, Catostomus latipinnis, of the Colorado River and its tributaries.
- floating restaurant — a boat or ship that has been converted for use as a restaurant
- floppy (disk) drive — the controller and mechanism for reading and writing data on floppy disks
- flowering raspberry — a shrub, Rubus ordoratus, of eastern North America, having loose clusters of showy purplish or rose-purple flowers and inedible, dry, red fruit.
- fluophosphoric acid — fluorophosphoric acid.
- fluoride toothpaste — toothpaste containing a small amount of fluoride as protection against tooth decay
- focal plane shutter — an opaque shield in a camera, lying in the focal plane of the lens, that, when tripped, admits light to expose the film or plate for a predetermined period, usually a fraction of a second
- focal-plane shutter — a camera shutter situated directly in front of the film.
- for all it is worth — If someone does something for all it is worth, they do it as much as possible and for as long as they can get benefit from it.
- for all sb is worth — If you do something for all you are worth, you do it with a lot of energy and enthusiasm.
- foregone conclusion — an inevitable conclusion or result.
- four eyes principle — the requirement that a business transaction be approved by at least two individuals
- fractal compression — (algorithm) A technique for encoding images using fractals.
- free alongside quay — (of a shipment of goods) delivered to the quay without charge to the buyer
- free alongside ship — (of a shipment of goods) delivered to the dock without charge to the buyer, but excluding the cost of loading onto the vessel
- from pillar to post — an upright shaft or structure, of stone, brick, or other material, relatively slender in proportion to its height, and of any shape in section, used as a building support, or standing alone, as for a monument: Gothic pillars; a pillar to commemorate Columbus.
- gain on translation — A gain on translation is the amount of money that is made by a company by converting another currency used in a transaction into the functional currency of the company.
- gastrocolic omentum — the peritoneal fold attached to the stomach and the colon and hanging over the small intestine.
- gastroenterocolitis — (medicine) inflammation of the stomach, small intestines, and colon.
- gastroenterological — Of or pertaining to gastroenterology.
- gel electrophoresis — a technique for separating protein molecules of varying sizes in a mixture by moving them through a block of gel, as of agarose or polyacrylamide, by means of an electric field, with smaller molecules moving faster and therefore farther than larger ones.
- general post office — (in the U.S. postal system) the main post office of a city, county, etc., that also has branch post offices. Abbreviation: G.P.O., GPO.
- gentleman-pensioner — (formerly) a gentleman-at-arms.
- gestational carrier — surrogate mother (def 3).
- giant silkworm moth — any silkworm moth of the family Saturniidae.
- glorious revolution — the events of 1688–89 in England that resulted in the ousting of James II and the establishment of William III and Mary II as joint monarchs
- glottalic airstream — a current of air in the pharynx produced by the action of the glottis.
- gloucester old spot — a hardy rare breed of pig, white with a few black markings, that originally lived off windfalls in orchards in the Severn valley
- go round in circles — to engage in energetic but fruitless activity
- go to great lengths — If you say that someone goes to great lengths to achieve something, you mean that they try very hard and perhaps do extreme things in order to achieve it.
- gold-rimmed glasses — spectacles with gold-coloured frames
- goodwill ambassador — an ambassador who shows goodwill to another country, organization, etc, on behalf of his or her own country, organization, etc
- gorzow wielkopolski — a city in NW Poland, on the Warta River.
- grand duke nicholas — of Cusa [kyoo-zuh] /ˈkyu zə/ (Show IPA), 1401–1464, German cardinal, mathematician, and philosopher. German Nikolaus von Cusa.
- grandfather's clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
- grandmother's clock — a pendulum clock similar to a grandfather's clock but shorter.
- grasshopper warbler — a Eurasian warbler Locustella naevia
- greenhouse whitefly — See under whitefly.
- gregorian telescope — a telescope similar in design to the Cassegrainian telescope but less widely used.
- guillaume de lorris — 13th-century French poet who wrote the first 4058 lines of the allegorical romance, the Roman de la rose, continued by Jean de Meung
- handlebar moustache — a man's moustache having long, curved ends that resemble the handlebars of a bicycle.
- haul over the coals — a black or dark-brown combustible mineral substance consisting of carbonized vegetable matter, used as a fuel. Compare anthracite, bituminous coal, lignite.
- haute vulgarisation — vulgarization, or popularization, on a higher level, esp. as done by academics, scholars, etc.
- health professional — a person trained to work in any field of physical or mental health.
- helsinki conference — Conference on Security and Cooperation in Europe.
- hepatoportal system — a vascular arrangement in vertebrates through which blood is transported into the liver from capillaries of the stomach, spleen, duodenum, pancreas, and intestines.
- hester lynch piozzi — Hester Lynch (Hester Lynch Piozzi) 1741–1821, Welsh writer and friend of Samuel Johnson.
- high blood pressure — elevation of the arterial blood pressure or a condition resulting from it; hypertension. Abbreviation: HBP.
- historiographically — In a historiographical manner; by means of a historiography.
- hold no terrors for — If something holds no terrors for you, you are not at all frightened or worried by it.