22-letter words containing h, a, o, r, i
- cross the great divide — to die
- curvature of the spine — a condition in which the spine is abnormally curved
- dalton's atomic theory — the theory that matter consists of indivisible particles called atoms and that atoms of a given element are all identical and can neither be created nor destroyed. Compounds are formed by combination of atoms in simple ratios to give compound atoms (molecules). The theory was the basis of modern chemistry
- de broglie wave length — the postulate of wave mechanics that a particle of mass m moving at a velocity v will have the properties of a wave of wavelength h / mv (de Broglie wavelength) where h is Planck's constant.
- dehydroepiandrosterone — the most abundant steroid in the human body, that is involved in the manufacture of testosterone, oestrogen, progesterone, and corticosterone
- delayed-action shutter — a camera shutter that opens after an interval set by the photographer
- diachronic linguistics — historical linguistics.
- dihydroxyphenylalanine — dopa.
- directional microphone — a microphone that has a greater sensitivity to sounds coming from a particular area in front of it: used to eliminate unwanted sounds.
- dishonorable discharge — the discharge of a person from military service for an offense more serious than one for which a bad-conduct discharge is given.
- disposable soma theory — the theory that ageing is caused by the body having increasingly fewer resources to allocate towards repairing wear and damage to tissues
- dominant seventh chord — a chord consisting of the dominant and the major third, perfect fifth, and minor seventh above it. Its most natural resolution is to a chord on the tonic
- drumhead court-martial — a court-martial held, usually on a battlefield, for the summary trial of charges of offenses committed during military operations.
- earth inductor compass — a compass actuated by induction from the earth's magnetic field.
- ectotrophic mycorrhiza — a type of mycorrhiza, typical of temperate and Boreal trees, in which the fungus forms a layer on the outside of the roots of the plant
- electrophysiologically — In an electrophysiological way.
- electrothermal printer — a printer that produces characters by burning the image on specially coated paper
- endotrophic mycorrhiza — the most widespread and common type of mycorrhiza, in which the fungus lives within the cells of the roots of the plant
- english cocker spaniel — any of a breed of small spaniel, similar to and the progenitor of the cocker spaniel
- evolutionary algorithm — (EA) An algorithm which incorporates aspects of natural selection or survival of the fittest. An evolutionary algorithm maintains a population of structures (usually randomly generated initially), that evolves according to rules of selection, recombination, mutation and survival, referred to as genetic operators. A shared "environment" determines the fitness or performance of each individual in the population. The fittest individuals are more likely to be selected for reproduction (retention or duplication), while recombination and mutation modify those individuals, yielding potentially superior ones. EAs are one kind of evolutionary computation and differ from genetic algorithms. A GA generates each individual from some encoded form known as a "chromosome" and it is these which are combined or mutated to breed new individuals. EAs are useful for optimisation when other techniques such as gradient descent or direct, analytical discovery are not possible. Combinatoric and real-valued function optimisation in which the optimisation surface or fitness landscape is "rugged", possessing many locally optimal solutions, are well suited for evolutionary algorithms.
- fall prey to something — To fall prey to something bad means to be taken over or affected by it.
- fifth earl of rosebery — Archibald Philip Primrose [prim-rohz] /ˈprɪmˌroʊz/ (Show IPA), 5th Earl of, 1847–1929, British statesman and author: prime minister 1894–95.
- first cab off the rank — the first person, etc, to do or take advantage of something
- floating exchange rate — a system in which the value of a currency fluctuates against other currencies in accordance with market forces
- fort benjamin harrison — a military reservation and U.S. Army training center in central Indiana, NE of Indianapolis.
- forth modification lab — (event) (FORML) A Forth conference held every November on the West coast of the USA ().
- gallamine triethiodide — a neuromuscular blocking drug, C 30 H 60 I 3 N 3 O 3 , similar to curare, used as a skeletal muscle relaxant in conjunction with surgical anesthesia.
- geographic determinism — a doctrine that regards geographical conditions as the determining or molding agency of group life.
- get (or have) wind of — to get (or have) information or a hint concerning; hear (or know) of
- give (or get) the air — to reject (or be rejected) as a lover
- give a person what for — to punish or reprimand a person severely
- give something a whirl — to attempt or give a trial to something
- go their separate ways — When two or more people who have been together for some time go their separate ways, they go to different places or end their relationship.
- gravitational redshift — (in general relativity) the shift toward longer wavelengths of electromagnetic radiation emitted by a source in a gravitational field, especially at the surface of a massive star.
- green around the gills — the respiratory organ of aquatic animals, as fish, that breathe oxygen dissolved in water.
- guanosine triphosphate — GTP.
- gum bichromate process — a contact printing method in which the image is formed on a coating of sensitized gum containing a suitable colored pigment and potassium or ammonium dichromate.
- halfwave rectification — a rectifier that changes only one half of a cycle of alternating current into a pulsating, direct current.
- hans christian oersted — Hans Christian [hahns kris-tyahn] /hɑns ˈkrɪs tyɑn/ (Show IPA), 1777–1851, Danish physicist.
- harvard classification — a classification of stars based on the characteristic spectral absorption lines and bands of the chemical elements present
- have one's heart in it — to have enthusiasm for something
- have other fish to fry — have sth else to do
- heart is in your mouth — If your heart is in your mouth, you feel very excited, worried, or frightened.
- help a person off with — to assist a person in the removal of (clothes)
- hemorrhagic septicemia — an acute infectious disease of animals, caused by the bacterium Pasteurella multocida, and characterized by fever, catarrhal symptoms, pneumonia, and general blood infection.
- hermann-mauguin symbol — a notation for indicating a particular point group.
- highway contract route — a route for carrying mail over the highway between designated points, given on contract to a private carrier and often requiring, in rural areas, delivery to home mailboxes. Abbreviation: HCR.
- historical linguistics — the study of changes in a language or group of languages over a period of time.
- historical materialism — (in Marxist theory) the doctrine that all forms of social thought, as art or philosophy, and institutions, as the family or the state, develop as a superstructure founded on an economic base; that they reflect the character of economic relations and are altered or modified as a result of class struggles; that each ruling economic class produces the class that will destroy or replace it; and that dialectical necessity requires the eventual withering away of the state and the establishment of a classless society: the body of theory, in dialectical materialism, dealing with historical process and social causation.
- home improvement grant — a government grant for house improvements such as insulation, adding a bathroom, or urgent repairs