18-letter words containing a, g, o
- golden gate bridge — a bridge connecting N California with San Francisco peninsula. 4200-foot (1280-meter) center span.
- golden-brown algae — a group of mostly marine, motile algae of the phylum Chlorophyta, characterized by the presence of the pigments chlorophyll, carotene, and xanthophyll, which impart golden to yellow-brown colors.
- good conduct medal — a medal awarded an enlisted person for meritorious behavior during the period of service.
- good samaritan law — a law that exempts from legal liability persons, sometimes only physicians, who give reasonable aid to strangers in grave physical distress.
- good/not bad going — If you say that something that has been achieved is good going or not bad going, you mean that it is better than usual or than expected.
- goods and chattels — personal property
- gooseneck barnacle — goose barnacle
- goya (y lucientes) — Fran‧ˈcis‧co Jo‧ˈsé‧ de (fʀɑnˈθiskɔhɔˈsɛ ðɛ) ; fränt hēsˈk^ōh^ōseˈ the) 1746-1828; Sp. painter
- grains of paradise — Usually, grains of paradise. one of the pungent, peppery seeds of an African plant, Aframomum melegueta, of the ginger family, used to strengthen cordials and in veterinary medicine.
- grampian mountains — a mountain system of central Scotland, extending from the southwest to the northeast and separating the Highlands from the Lowlands. Highest peak: Ben Nevis, 1344 m (4408 ft)
- grand canyon state — Arizona (used as a nickname).
- grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
- granulation tissue — tissue formed in ulcers and in early wound healing and repair, composed largely of newly growing capillaries and so called from its irregular surface in open wounds; proud flesh.
- grass-of-parnassus — any plant belonging to the genus Parnassia, of the saxifrage family, growing in marshy areas, having broad, smooth leaves and a single, pale flower.
- grasshopper engine — a steam engine having a piston attached to one end of a beam that is hinged to an upright at the other end, the connecting rod being suspended from near the center of the beam.
- gravitational lens — a heavy, dense body, as a galaxy, that lies along our line of sight to a more distant object, as a quasar, and whose gravitational field refracts the light of that object, splitting it into multiple images as seen from the earth.
- gravitational mass — the mass of a body as measured by its gravitational attraction for other bodies.
- gravitational pull — force of gravity
- gravitational wave — (in general relativity) a propagating wave of gravitational energy produced by accelerating masses, especially during catastrophic events, as the gravitational collapse of massive stars.
- gray manganese ore — manganite.
- grease the palm of — to influence by giving money to; bribe
- great expectations — a novel (1861) by Charles Dickens.
- great pastern bone — the part of the foot of a horse, cow, etc., between the fetlock and the hoof.
- greater pichiciego — an armadillo, Burmeisteria retusa, similar to, but larger than, a pichiciego
- greater roadrunner — either of two large terrestrial cuckoos of the genus Geococcyx of arid regions of the western U.S., Mexico, and Central America, especially G. californianus (greater roadrunner)
- greater yellowlegs — either of two American shorebirds having yellow legs, Tringa melanoleuca (greater yellowlegs) or T. flavipes (lesser yellowlegs)
- green-backed heron — a small, American heron, Butorides striatus, having glossy green wings.
- greenhouse warming — the increase in the mean temperature of the earth attributed to the greenhouse effect
- gregorian calendar — the reformed Julian calendar now in use, according to which the ordinary year consists of 365 days, and a leap year of 366 days occurs in every year whose number is exactly divisible by 4 except centenary years whose numbers are not exactly divisible by 400, as 1700, 1800, and 1900.
- grosse pointe park — a city in SE Michigan, near Detroit.
- growing degree-day — a degree-day above 41°F (5°C), used in relation to plant growth.
- guidance counselor — advisor in schools
- gulf of california — an arm of the Pacific Ocean, between Sonora and Lower California
- gyromagnetic ratio — the ratio of the magnetic moment of a rotating charged particle to its angular momentum.
- haemorrhagic fever — any of a group of fevers, such as Ebola virus disease and yellow fever, characterized by internal bleeding or bleeding into the skin
- hash house slinger — a person who serves in a cheap cafe
- haulage contractor — a person or firm that transports goods by lorry
- have (got) it made — to be assured of success
- have a thing about — If you have a thing about someone or something, you have very strong feelings about them.
- have got to do sth — You use have got to when you are saying that something is necessary or must happen in the way stated. In informal American English, the 'have' is sometimes omitted.
- hell or high water — whatever difficulties may arise
- hepatosplenomegaly — Enlargement of both the liver and spleen.
- hermaphrodite brig — a two-masted sailing vessel, square-rigged on the foremast and fore-and-aft-rigged on the mainmast.
- herring bone weave — a pattern consisting of adjoining vertical rows of slanting lines, any two contiguous lines forming either a V or an inverted V , used in masonry, textiles, embroidery, etc.
- hidalgo y costilla — Miguel [mee-gel] /miˈgɛl/ (Show IPA), 1753–1811, Mexican priest, patriot, and revolutionist.
- higher-order macro — A means of expressing certain higher-order functions in a first order language. Proposed by Phil Wadler. Higher-order macros cannot be recursive at the top level but they may contain recursive definitions. E.g. See partial evaluation.
- highlight halftone — dropout (def 7).
- histomorphological — histology.
- historical geology — the branch of geology dealing with the history of the earth.
- horizontal tasting — a tasting of wines from the same year but from different vineyards, producers, etc.