17-letter words containing h, o, a
- further education — adult education.
- garden heliotrope — the common valerian, Valeriana officinalis, especially when cultivated as an ornamental.
- gas chromatograph — a chromatograph used for the separation of volatile substances.
- generalized other — an individual's internalized impression of societal norms and expectations.
- genetic algorithm — (GA) An evolutionary algorithm which generates each individual from some encoded form known as a "chromosome" or "genome". Chromosomes are combined or mutated to breed new individuals. "Crossover", the kind of recombination of chromosomes found in sexual reproduction in nature, is often also used in GAs. Here, an offspring's chromosome is created by joining segments choosen alternately from each of two parents' chromosomes which are of fixed length. GAs are useful for multidimensional optimisation problems in which the chromosome can encode the values for the different variables being optimised.
- geographical mile — nautical mile.
- george washington — Booker T(aliaferro) [boo k-er tol-uh-ver] /ˈbʊk ər ˈtɒl ə vər/ (Show IPA), 1856–1915, U.S. reformer, educator, author, and lecturer.
- geothermal energy — Geothermal energy is energy from temperature differences inside the earth's crust.
- gestatorial chair — a ceremonial chair on which the pope is carried
- get in on the act — If you get in on the act, you take part in or take advantage of something that was started by someone else.
- get in one's hair — to annoy one
- get off the grass — an exclamation of disbelief
- give the go-ahead — authorize sb to do sth
- glastonbury chair — a folding chair having legs crossed front-to-back and having arms connected to the back and to the front seat rail.
- gnash one's teeth — If you say that someone is gnashing their teeth, you mean they are angry or frustrated about something.
- go back to the pa — to abandon city life in favour of rural life
- go by the wayside — to be put aside on account of something more urgent
- go down the drain — to withdraw or draw off (a liquid) gradually; remove slowly or by degrees, as by filtration: to drain oil from a crankcase.
- go for the collar — to go without a hit in a game
- go like hot cakes — to be sold very quickly or in large quantities
- go on the rampage — If people go on the rampage, they rush about in a wild or violent way, causing damage or destruction.
- go out of fashion — be dated
- go out of the way — to inconvenience oneself; do something that one would not ordinarily do, or that requires extra or deliberate effort or trouble
- go the extra mile — make an exceptional effort
- go without saying — something said, especially a proverb or apothegm.
- golden hand-shake — a special incentive, as generous severance pay, given to an older employee as an inducement to elect early retirement.
- good-time charlie — an affable, sociable, pleasure-loving man.
- grandfather clock — a pendulum floor clock having a case as tall as or taller than a person; tall-case clock; long-case clock.
- grandmother clock — a pendulum clock similar to a grandfather's clock but shorter.
- great vowel shift — a series of changes in the quality of the long vowels between Middle and Modern English as a result of which all were raised, while the high vowels (ē) and (o̅o̅), already at the upper limit, underwent breaking to become the diphthongs (ī) and (ou).
- great white heron — a large white heron, Ardea occidentalis, of Florida and the Florida Keys.
- great willow herb — either of two tall, large-flowered willow herbs, Epilobium angustifolium or E. hirsutum.
- great-grandmother — a grandmother of one's father or mother.
- ground angle shot — a photograph or film shot in which the lens is near the ground, usually pointing up somewhat
- guadalupe hidalgo — a city in the Federal District of Mexico: famous shrine; peace treaty 1848.
- guardhouse lawyer — a person in military service, especially an inmate of a guardhouse or brig, who is or claims to be an authority on military law, regulations, and soldiers' rights.
- guinea-hen flower — checkered lily.
- gustavus adolphus — (Gustavus Adolphus) 1778–1837, king of Sweden 1792–1809 (son of Gustavus III).
- gustavus-adolphus — (Gustavus Adolphus) 1778–1837, king of Sweden 1792–1809 (son of Gustavus III).
- haemagglutination — Alternative form of hemagglutination.
- haematocrystallin — Alternative form of hematocrystallin.
- haemoglobinometer — an instrument used to determine the haemoglobin content of blood
- haemoglobinopathy — (medicine) Any of a group of inherited disorders in which haemoglobin does not function properly.
- haemorrhoidectomy — surgical removal of haemorrhoids
- hairy-tailed mole — a blackish North American mole, Parascalops breweri, having a short, hairy tail.
- haitian solenodon — a rare shrewlike nocturnal mammal of the Caribbean, Solenodon paradoxus, having a long hairless tail and an elongated snout: family Solenodontidae, order Insectivora (insectivores)
- half-round chisel — a cold chisel with a semicircular cutting edge used for making narrow channels
- hall of residence — Halls of residence are buildings with rooms or flats, usually built by universities or colleges, in which students live during the term.
- hamiltonian cycle — Hamiltonian problem
- hanging committee — a group of people that selects and hangs works of art to exhibit