9-letter words containing r, d, o
- granitoid — resembling or having the texture of granite.
- gray body — any body that emits radiation at each wavelength in a constant ratio less than unity to that emitted by a black body at the same temperature.
- gray code — (hardware) A binary sequence with the property that only one bit changes between any two consecutive elements (the two codes have a Hamming distance of one). The Gray code originated when digital logic circuits were built from vacuum tubes and electromechanical relays. Counters generated tremendous power demands and noise spikes when many bits changed at once. E.g. when incrementing a register containing 11111111, the back-EMF from the relays' collapsing magnetic fields required copious noise suppression. Using Gray code counters, any increment or decrement changed only one bit, regardless of the size of the number. Gray code can also be used to convert the angular position of a disk to digital form. A radial line of sensors reads the code off the surface of the disk and if the disk is half-way between two positions each sensor might read its bit from both positions at once but since only one bit differs between the two, the value read is guaranteed to be one of the two valid values rather than some third (invalid) combination (a glitch). One possible algorithm for generating a Gray code sequence is to toggle the lowest numbered bit that results in a new code each time. Here is a four bit Gray code sequence generated in this way: 0 0 0 0 0 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 1 1 0 1 0 1 0 1 0 0 1 1 0 0 1 1 0 1 1 1 1 1 1 1 1 0 1 0 1 0 1 0 1 1 1 0 0 1 1 0 0 0 The codes were patented in 1953 by Frank Gray, a Bell Labs researcher.
- gray mold — a disease of plants, characterized by a gray, furry coating on the decaying parts, caused by any of several fungi.
- grayhound — one of a breed of tall, slender, short-haired dogs, noted for its keen sight and swiftness.
- great dog — the constellation Canis Major.
- greedsome — greedy
- greek god — a man who is strikingly handsome and well built.
- greenwood — a city in W South Carolina.
- grewhound — a greyhound
- grey body — a body that emits radiation in constant proportion to the corresponding black-body radiation
- greyhound — one of a breed of tall, slender, short-haired dogs, noted for its keen sight and swiftness.
- grid road — a municipal road that follows a grid line established by the original survey of the area.
- gridirons — Plural form of gridiron.
- grind out — extinguish: a cigarette, etc.
- grommeted — Machinery. any of various rings or eyelets of metal or the like. an insulated washer of rubber or plastic, inserted in a hole in a metal part to prevent grounding of a wire passing through the hole.
- groundage — a tax levied on ships that anchor in a port.
- grounders — Plural form of grounder.
- groundhog — woodchuck.
- grounding — the solid surface of the earth; firm or dry land: to fall to the ground.
- groundman — a groundsman
- groundnut — Also called wild bean, potato bean. a twining, North American plant, Apios americana (or A. tuberosa), of the legume family, having clusters of fragrant brownish flowers and an edible tuber.
- groundout — a play in which a batter is put out at first base after hitting a ground ball to the infield.
- groundsel — groundsill.
- grovelled — to humble oneself or act in an abject manner, as in great fear or utter servility.
- guard dog — a large, aggressive dog, as a German shepherd or Doberman pinscher, trained to guard persons or property and often to attack or restrain on command.
- guardpost — Alternative spelling of guard post.
- guardroom — a room used by military guards during the period they are on duty.
- guideword — A watchword; a word or phrase that serves as one's guide.
- guildford — a city in S England, in Surrey: cathedral (1936–68); seat of the University of Surrey (1966). Pop: 69 400 (2001)
- gunpowder — an explosive mixture, as of potassium nitrate, sulfur, and charcoal, used in shells and cartridges, in fireworks, for blasting, etc.
- hadrosaur — a bipedal dinosaur of the genus Hadrosaurus, belonging to the ornithopod family Hadrosauridae of the late Cretaceous Period, having broad, flat jaws for scooping up water plants.
- hand horn — a forerunner of the modern French horn, developed in Germany during the mid-17th century.
- hand over — the terminal, prehensile part of the upper limb in humans and other primates, consisting of the wrist, metacarpal area, fingers, and thumb.
- hand-roll — (jargon) (From mainstream slang "hand-rolled cigarette" in opposition to "ready-made") To perform a normally automated software installation or configuration process by hand; implies that the normal process failed due to bugs or was defeated by something exceptional in the local environment. "The worst thing about being a gateway between four different nets is having to hand-roll a new sendmail configuration every time any of them upgrades."
- handiwork — work done by hand.
- handovers — Plural form of handover.
- handsomer — having an attractive, well-proportioned, and imposing appearance suggestive of health and strength; good-looking: a handsome man; a handsome woman.
- handwrote — to write (something) by hand.
- handywork — Dated form of handiwork.
- harboured — a part of a body of water along the shore deep enough for anchoring a ship and so situated with respect to coastal features, whether natural or artificial, as to provide protection from winds, waves, and currents.
- hard boot — (operating system) A boot which resets the entire system. The phrase has connations of hostility toward, or frustration with, the computer being booted. For example, "I'll have to hard boot this losing Sun", or "I recommend booting it hard". Hard boots are often performed with a power cycle. Contrast soft boot. See also cold boot and reboot
- hard coal — anthracite.
- hard copy — copy, as computer output printed on paper, that can be read without using a special device (opposed to soft copy).
- hard core — pornography: obscene
- hard doer — a tough worker at anything
- hard loan — a foreign loan which is to be paid back in an agreed currency which has stability and economic strength
- hard porn — hard-core pornography.
- hard rock — heavy form of popular music
- hard-boil — to boil (an egg) until the yolk and white have become firm or solid.