17-letter words containing a, e, n, o, l
- 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
- guglielmo marconi — Guglielmo [goo-lyel-maw] /guˈlyɛl mɔ/ (Show IPA), Marchese, 1874–1937, Italian electrical engineer and inventor, especially in the field of wireless telegraphy: Nobel Prize in physics 1909.
- guinea-hen flower — checkered lily.
- gulf of venezuela — an inlet of the Caribbean in NW Venezuela: continues south as Lake Maracaibo
- gulf war syndrome — a group of symptoms occurring in some Gulf War veterans, most commonly including headache and memory loss, muscle pain, skin disorders, fatigue, sleep disturbances, and gastrointestinal and respiratory ailments, possibly caused by exposure to chemical weapons, vaccines, infectious diseases, or other factors.
- 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)
- 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
- harmonic interval — an intervening period of time: an interval of 50 years.
- have feelings for — to be emotionally or sexually attracted to
- heavy mineral oil — a colorless, oily, almost tasteless, water-insoluble liquid, usually of either a standard light density (light mineral oil) or a standard heavy density (heavy mineral oil) consisting of mixtures of hydrocarbons obtained from petroleum by distillation: used chiefly as a lubricant, in the manufacture of cosmetics, and in medicine as a laxative.
- 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.
- 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
- hollandaise sauce — a sauce of egg yolks, butter, lemon juice, and seasonings.
- hollerith, herman — Herman Hollerith
- holy roman empire — a Germanic empire located chiefly in central Europe that began with the coronation of Charlemagne as Roman emperor in a.d. 800 (or, according to some historians, with the coronation of Otto the Great, king of Germany, in a.d. 962) and ended with the renunciation of the Roman imperial title by Francis II in 1806, and was regarded theoretically as the continuation of the Western Empire and as the temporal form of a universal dominion whose spiritual head was the pope.
- 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.
- 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.
- household ammonia — diluted ammonia, often having a small quantity of detergent, used in the home for cleaning.
- 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.
- hypoglossal nerve — either one of the twelfth pair of cranial nerves, consisting of motor fibers that innervate the muscles of the tongue.
- ignoratio elenchi — the fallacy of offering proof irrelevant to the proposition in question.
- illinois waterway — a waterway system in N Illinois made up of canals and rivers connecting Lake Michigan in Chicago with the Mississippi River. 336 miles (541 km) long.
- imitation doublet — a doublet formed entirely of glass.
- impersonalization — to make impersonal: The dial system impersonalized the telephone.
- 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.
- impressionability — easily impressed or influenced; susceptible: an impressionable youngster.