16-letter words containing r, h, o
- girls' night out — an evening spent outside of the home by a group of women
- glory-of-the-sun — a bulbous, Chilean plant, Leucocoryne ixioides, of the amaryllis family, having fragrant, white or blue flowers.
- glossopharyngeal — of or relating to the tongue and pharynx.
- glottochronology — the branch of lexicostatistics that studies the rate of replacement of vocabulary and attempts to determine what percentage of basic vocabulary two presently distinct but related languages share, using the information thus obtained to estimate how long ago they ceased being a single language.
- go off the rails — If someone goes off the rails, they start to behave in a way that other people think is unacceptable or very strange, for example they start taking drugs or breaking the law.
- go over the hill — a natural elevation of the earth's surface, smaller than a mountain.
- go with the turf — to be an unavoidable part of a particular situation or process
- gold star mother — an American woman whose son or daughter has died while serving in the United States Armed Forces
- golden horseshoe — the urban and agricultural area surrounding Toronto.
- golden parachute — an employment contract or agreement guaranteeing a key executive of a company substantial severance pay and other financial benefits in the event of job loss caused by the company's being sold or merged.
- good housekeeper — a person who is an efficient and thrifty domestic manager
- good-for-nothing — worthless; of no use.
- good-heartedness — the quality of being good-hearted
- government house — the official residence of a colonial governor, as in a British Commonwealth country.
- grape phylloxera — See under phylloxera.
- graphics adaptor — (hardware, graphics) (Or "graphics adapter", "graphics card", "video adaptor", etc.) A circuit board fitted to a computer, especially an IBM PC, containing the necessary video memory and other electronics to provide a bitmap display. Adaptors vary in the resolution (number of pixels) and number of colours they can display, and in the refresh rate they support. These parameters are also limited by the monitor to which the adaptor is connected. A number of such display standards, e.g. SVGA, have become common and different software requires or supports different sets.
- great blue heron — a large American heron, Ardea herodias, having bluish-gray plumage.
- great horned owl — a large, brown-speckled owl, Bubo virginianus, common in the Western Hemisphere, having prominent ear tufts.
- greyhound racing — a sport in which a mechanically propelled dummy hare is pursued by greyhounds around a race track
- grind your teeth — If you grind your teeth, you rub your upper and lower teeth together as though you are chewing something.
- grit one's teeth — abrasive particles or granules, as of sand or other small, coarse impurities found in the air, food, water, etc.
- growth potential — capability of expanding
- growth substance — any substance, produced naturally by a plant or manufactured commercially, that, in very low concentrations, affects plant growth; a plant hormone
- gulf of honduras — an inlet of the Caribbean, on the coasts of Honduras, Guatemala, and Belize
- gum up the works — exertion or effort directed to produce or accomplish something; labor; toil.
- gynandromorphism — an individual exhibiting morphological characteristics of both sexes.
- gynandromorphous — an individual exhibiting morphological characteristics of both sexes.
- gyratory crusher — A gyratory crusher is a crusher in which a cone-shaped rod rotates in a cone-shaped bowl.
- haemochromatosis — (British spelling) alternative spelling of hemochromatosis.
- hair conditioner — a substance used, often after shampooing, to detangle and improve the condition of the hair. Like shampoo, it is applied to wet hair and then rinsed out after applying.
- hairy woodpecker — a North American woodpecker, Picoides villosus, resembling but larger than the downy woodpecker.
- half life period — Physics. the time required for one half the atoms of a given amount of a radioactive substance to disintegrate.
- hamadryas baboon — a baboon, Papio (Comopithecus) hamadryas, of Ethiopia, the male of which has a mantle of long, dark hair about the head and shoulders: held sacred by the ancient Egyptians.
- hamiltonian tour — Hamiltonian problem
- hammer and tongs — with great vigor, determination, or vehemence: When he starts a job he goes at it hammer and tongs.
- hang around with — to associate or socialize with
- hanging wardrobe — a wardrobe containing a rail with a large amount of space underneath, so that clothes can be hung on hangers placed onto the rail
- hard put (to it) — having considerable difficulty or trouble
- hard rock mining — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- hard times token — any of a series of U.S. copper tokens, issued 1834–41, bearing a political inscription or advertising message and serving as currency during coin shortages.
- hard-packed snow — snow which becomes very firmly packed as it becomes refrozen due to cold weather conditions rather than melting
- hardrock geology — (loosely) of or relating to igneous or metamorphic rocks, as in mining (hard-rock mining) and geology (hard-rock geology)
- hare's-foot fern — a fern, Polypodium aureum, of tropical America, having a brown, scaly rootstock and green or deep bluish-green fronds.
- harvey firestone — Harvey Samuel, 1868–1938, U.S. industrialist and rubber manufacturer.
- have a word with — discuss
- have been around — be experienced
- have no time for — not tolerate
- have the drop on — a small quantity of liquid that falls or is produced in a more or less spherical mass; a liquid globule.
- hawthorne effect — a positive change in the performance of a group of persons taking part in an experiment or study due to their perception of being singled out for special consideration.
- head normal form — (theory, reduction) (HNF) A term describing a lambda expression whose top level is either a variable, a data value, a built-in function applied to too few arguments, or a lambda abstraction whose body is not reducible. I.e. the top level is neither a redex nor a lambda abstraction with a reducible body. An expression in HNF may contain redexes in argument postions whereas a normal form may not. Compare Weak Head Normal Form.