12-letter words containing h, a, n, o
- holding tank — a tank for the temporary storage of a substance.
- hollingshead — Holinshed.
- hollywoodian — a person who works for the motion-picture industry located in Hollywood, Calif.
- holocephalan — (zoology) Any cartilaginous fish of the subclass Holocephali; the chimeras.
- holoplankton — plankton that spend their entire life cycle as free-swimming organisms (opposed to hemiplankton).
- holothurians — Plural form of holothurian.
- home and dry — If you say that someone is, in British English home and dry, or in American English home free, you mean that they have been successful or that they are certain to be successful.
- home banking — a system whereby a person at home or in an office can use a computer with a modem to call up information from a bank or to transfer funds electronically
- home machine — 1. Synonym home box. 2. The machine that receives your e-mail. These senses might be distinct, for example, for a hacker who owns one computer at home, but reads e-mail at work.
- home staging — the professional service of preparing homes for sale in such a way as to appeal to potential buyers and generate higher selling prices: Realtors who encourage sellers to invest in home staging are reporting substantial monetary returns—for both themselves and their clients.
- homesteading — a dwelling with its land and buildings, occupied by the owner as a home and exempted by a homestead law from seizure or sale for debt.
- hominization — the evolution of the human traits that set the genus Homo apart from its primate ancestors.
- homo sapiens — (italics) the species of bipedal primates to which modern humans belong, characterized by a brain capacity averaging 1400 cc (85 cubic in.) and by dependence upon language and the creation and utilization of complex tools.
- homodynamous — (biology) Pertaining to, or involving, homodynamy.
- homologation — to approve; confirm or ratify.
- homologumena — the books in the New Testament generally held as authoritative and canonical by the early church.
- homoromantic — Romantically attracted to those of the same gender.
- honey badger — ratel.
- honorability — (American spelling) Alternative form of honourability.
- hook and eye — a two-piece clothes fastener, usually of metal, consisting of a hook that catches onto a loop or bar.
- hooray henry — a young upper-class man, often with affectedly hearty voice and manners
- hootenannies — Plural form of hootenanny.
- hoover apron — a dresslike coverall for women that ties at the waist.
- hop hornbeam — any of several Eurasian and North American trees of the genus Ostrya, of the birch family, especially O. virginiana, bearing hoplike fruiting clusters.
- hope diamond — a sapphire-blue Indian diamond, the largest blue diamond in the world, weighing 44.5 carats and supposedly cut from a bigger diamond that was once part of the French crown jewels: now in the Smithsonian Institution.
- horatian ode — an ode consisting of several stanzas all of the same form.
- horizontally — at right angles to the vertical; parallel to level ground.
- horn antenna — a microwave aerial, formed by flaring out the end of a waveguide
- horn balance — an extension of an aircraft control surface that projects in front of the hinge providing aerodynamic assistance in moving the control
- horse around — a large, solid-hoofed, herbivorous quadruped, Equus caballus, domesticated since prehistoric times, bred in a number of varieties, and used for carrying or pulling loads, for riding, and for racing.
- horse manure — horse's excrement
- horse marine — (formerly) a marine mounted on horseback or a cavalryman doing duty on shipboard.
- horse racing — a contest of speed among horses that either are ridden by jockeys or pull sulkies and their drivers.
- horsemanship — the art, ability, skill, or manner of a horseman.
- hosepipe ban — a ban, due to water shortage, on using hosepipes to water the garden or wash cars
- hot swapping — (hardware) The connection and disconnection of peripherals or other components without interrupting system operation. This facility may have design implications for both hardware and software.
- house martin — a small European swallow, Delichon urbica, that builds its nest under the eaves of houses.
- housecleaner — Someone employed to clean a house.
- househusband — a man whose spouse works and who stays home to manage their household.
- housepainter — A professional painter of houses.
- housetrained — Simple past tense and past participle of housetrain.
- housewarming — a party to celebrate a person's or family's move to a new home.
- hovering act — an act forbidding or restricting the loitering of foreign or domestic vessels within the prescribed limits of a coastal nation.
- hua guo feng — 1921–2008, Chinese Communist statesman; prime minister of China 1976–80
- huffman code — Huffman coding
- human comedy — French La Comédie Humaine. a collected edition of tales and novels in 17 volumes (1842–48) by Honoré de Balzac.
- human genome — genetic code of human beings
- humanisation — Alternative form of humanization.
- humanization — to make humane, kind, or gentle.
- humification — the formation of humus.