18-letter words containing g, i, r, s, h
- on the danger list — critically ill in hospital
- orthopedic surgery — corrective operation on bones or joints
- orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
- oscillographically — By means of oscillography.
- parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
- pemphigus vulgaris — a potentially fatal blistering skin disease, characterized by large blisters on the skin, mucous membranes of the mouth, genitals, intestines, etc, which eventually rupture and form painful denuded areas from which critical amounts of bodily protein, fluid, and blood may be lost
- perish the thought — to die or be destroyed through violence, privation, etc.: to perish in an earthquake.
- phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
- photomorphogenesis — plant development that is controlled by light.
- physical geography — the branch of geography concerned with natural features and phenomena of the earth's surface, as landforms, drainage features, climates, soils, and vegetation.
- pine tree shilling — a silver coin minted in Massachusetts in the mid to late 17th century, named for the pine tree within a circle shown on the obverse side.
- plains grasshopper — a large, destructive short-horned grasshopper, Brachystola magna, of the western U.S., marked by pinkish hind wings.
- plight one's troth — to make a promise of marriage
- positively charged — having a positive charge
- prerelease showing — a showing of a film before it goes on general release
- process scheduling — multitasking
- proprietary rights — rights of ownership
- purchasing officer — the member of staff in an organization who is responsible for buying goods or products
- rear its ugly head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
- red-light district — an area or district in a city in which many houses of prostitution are located.
- registered charity — official aid organization
- resistance fighter — someone who fights (for freedom, etc) against an invader in an occupied country, or against their government, etc, often secretly or illegally
- right-to-work laws — a state law making it illegal to refuse employment to a person for the sole reason that he or she is not a union member.
- rufous hummingbird — a reddish-brown hummingbird, Selasphorus rufus, of western North America.
- school of motoring — a centre where people pay for lessons to learn to drive
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- senior high school — a school attended after junior high school and usually consisting of grades 10 through 12.
- shift one's ground — to change one's argument or defense
- shipping container — a large, strong container, usually of metal, used to store goods in during shipment
- shotgun microphone — a directional microphone with a narrow-angle range of sensitivity.
- shugart associates — (company) The disk drive company, founded by Alan F. Shugart, which developed SCSI. Alan left Shugart Associates in 1974 [did he quit or was he fired?]. Shugart Associates was bought, and eventually shut down by Xerox.
- shunting operation — an operation in which rail coaches are manoeuvred
- sixth-form college — (in England and Wales) a college offering A-level and other courses to pupils over sixteen from local schools, esp from those that do not have sixth forms
- slim hole drilling — Slim hole drilling is drilling a well in which at least 90 percent of the hole has a diameter of seven inches or less.
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- snake in the grass — a treacherous person, especially one who feigns friendship.
- something or other — sth not remembered precisely
- something to spare — a surplus of something
- song without words — a song which only consists of a tune or melody and does not have any lyrics
- spectroheliography — the process of obtaining an image of the sun in light of a particular wavelength, such as calcium or hydrogen, showing the distribution of the element over the surface and in the solar atmosphere, using a spectroheliograph
- speech recognition — Computers. the computerized analysis of spoken words in order to identify the speaker, as in security systems, or to respond to voiced commands: the analysis is performed by finding patterns in the spectrum of the incoming sound and comparing them with stored patterns of elements of sound, as phones, or of complete words.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- spherical triangle — a triangle formed by arcs of great circles of a sphere.
- strathclyde region — a former local government region in W Scotland: formed in 1975 from Glasgow, Renfrewshire, Lanarkshire, Buteshire, Dunbartonshire, and parts of Argyllshire, Ayrshire, and Stirlingshire; replaced in 1996 by the council areas of Glasgow, Renfrewshire, East Renfrewshire, Inverclyde, North Lanarkshire, South Lanarkshire, Argyll and Bute, East Dunbartonshire, West Dunbartonshire, North Ayrshire, South Ayrshire, and East Ayrshire
- stratigraphic trap — A stratigraphic trap is a rock formation that contains hydrocarbons and is sealed by other rock formations.
- super middleweight — a boxer weighing up to 168 pounds (75.6 kg), between middleweight and light heavyweight.
- superstring theory — any supersymmetric string theory in which each type of elementary particle is treated as a vibration of a single fundamental string (superstring) at a particular frequency.
- sympathetic string — a thin wire string, as in various obsolete musical instruments, designed to vibrate sympathetically with the bowed or plucked strings to reinforce the sound.
- synthetic geometry — elementary geometry, as distinct from analytic geometry.
- technical sergeant — a noncommissioned officer ranking below a master sergeant and above a staff sergeant.