17-letter words containing n, o, t, h, e, l
- 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.
- geothermal energy — Geothermal energy is energy from temperature differences inside the earth's crust.
- glory-of-the-snow — any of several plants belonging to the genus Chionodoxa, of the lily family, native to the Old World, having showy, blue, white, or pink flowers that bloom early in the spring.
- 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.
- ground angle shot — a photograph or film shot in which the lens is near the ground, usually pointing up somewhat
- 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.
- 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)
- hamiltonian cycle — Hamiltonian problem
- harmonic interval — an intervening period of time: an interval of 50 years.
- helicopter parent — a style of child rearing in which an overprotective mother or father discourages a child's independence by being too involved in the child's life: In typical helicopter parenting, a mother or father swoops in at any sign of challenge or discomfort.
- henry cabot lodge — Henry Cabot, 1850–1924, U.S. public servant and author: senator 1893–1924.
- henry of portugal — ("the Navigator") 1394–1460, prince of Portugal: sponsor of geographic explorations.
- high-carbon steel — steel containing between 0.5 and 1.5 per cent carbon
- hillel foundation — a national organization, founded in 1924 by the B'nai B'rith, that institutes and administers programs designed to enrich the religious, cultural, and social life of Jewish college students.
- histamine blocker — any of various substances that act at a specific receptor site to block certain actions of histamine.
- hold one's breath — If you say that someone is holding their breath, you mean that they are waiting anxiously or excitedly for something to happen.
- hold one's tongue — Anatomy. the usually movable organ in the floor of the mouth in humans and most vertebrates, functioning in eating, in tasting, and, in humans, in speaking.
- holding operation — a plan or procedure devised to prolong the existing situation
- hole in the heart — a defect of the heart in which there is an abnormal opening in any of the walls dividing the four heart chambers
- holistic medicine — incorporating the concept of holism, or the idea that the whole is more than merely the sum of its parts, in theory or practice: holistic psychology.
- hollerith, herman — Herman Hollerith
- homeland security — national defence
- honorable mention — a citation conferred on a contestant, exhibit, etc., having exceptional merit though not winning a top honor or prize.
- hornblende schist — a variety of schist containing needles of hornblende that lie in parallel planes.
- horst wessel song — the official song of the Nazi party in Germany from 1933 to 1945.
- hospital gangrene — Pathology. a contagious, often fatal gangrene, especially involving amputation stumps and war wounds, occurring usually in crowded, ill-kept hospitals, and caused by putrefactive bacteria.
- hot on sb's heels — If you say that someone is hot on your heels, you are emphasizing that they are chasing you and are not very far behind you.
- how the land lies — the prevailing conditions or state of affairs
- hubble's constant — the ratio of the recessional velocity of galaxies to their distance from the sun, with current measurements of its value ranging from 50 to 100 km/sec per megaparsec.
- hydrothermal vent — an opening on the floor of the sea from which hot, mineral-rich solutions issue. Compare vent1 (def 2).
- hyperalimentation — overfeeding.
- hyperbolic secant — a hyperbolic function that is the reciprocal of cosh; sech
- hyperchlorination — Chemistry. to combine or treat with chlorine. to introduce chlorine atoms into an organic compound by an addition or substitution reaction.
- hyperinflationary — (economics) Having very high levels of inflation.
- hyperpolarisation — Alternative spelling of hyperpolarization.
- hyperpolarization — The act or process of hyperpolarizing.
- ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
- implosion therapy — a form of behavior therapy involving intensive recollection and review of anxiety-producing situations or events in a patient's life in an attempt to develop more appropriate responses to similar situations in the future.
- in the altogether — wholly; entirely; completely; quite: altogether fitting.
- in the front line — Someone who is in the front line has to play a very important part in defending or achieving something.
- integrated school — (in New Zealand) a private or church school that has joined the state school system
- interrelationship — reciprocal relation.
- iontophoretically — By means of iontophoresis.
- island of the sun — Sicily: the island where Helius kept his oxen.
- italian greyhound — one of an Italian breed of toy dogs resembling a greyhound.
- john of lancaster — Duke of Bedford, 1389–1435, Bedford, John of Lancaster, Duke of.