15-letter words containing a, n, t, h, r, o
- hernando cortez — Hernando [er-nahn-daw] /ɛrˈnɑn dɔ/ (Show IPA), Hernán [er-nahn] /ɛrˈnɑn/ (Show IPA), 1485–1547, Spanish conqueror of Mexico.
- heterochromatin — the dense, highly stainable part of a chromosome.
- heteronormative — noting or relating to behavior or attitudes consistent with traditional male or female gender roles and the assumption of heterosexuality as the norm: our heteronormative culture.
- heterotolerance — (immunology) Subsequent unresponsiveness to a different agonist.
- hibernicization — the process or act of making Irish
- historicization — Act or process of historicizing.
- holding pattern — a traffic pattern for aircraft at a specified location (holding point) where they are ordered to remain until permitted to land or proceed.
- holocrystalline — (of igneous rocks) having only crystalline components and no glass
- honey tangerine — a citrus fruit with a deep-orange pulp, formed by crossing a tangerine and a sweet orange hybrid; Murcott
- hoosier cabinet — a tall kitchen cabinet mass-produced during the early part of the 20th century, usually of oak, featuring an enameled work surface, storage bins, a flour sifter, etc.
- hopper casement — a casement with a sash hinged at the bottom.
- horizontal well — A horizontal well is a well which has sections that have been drilled at more than 80 degrees from the vertical in order to penetrate a greater length of the reservoir.
- hospital corner — a fold on a bed sheet or blanket made by tucking the foot or head of the sheet straight under the mattress with the ends protruding and then making a diagonal fold at the side corner of the sheet and tucking this under to produce a triangular corner.
- hot-air balloon — passenger balloon
- hovering accent — indeterminacy as to which of two consecutive syllables in a line of verse bears the metrical stress, as in any of the first three feet of Slow, slow, / fresh fount, / keep time / with my / salt tears.
- human relations — the study of group behavior for the purpose of improving interpersonal relationships, as among employees.
- hunting leopard — the cheetah.
- huntington park — a city in SW California, near Los Angeles.
- hybrid antibody — a synthetic antibody that is able to combine with two different antigens
- hydrodynamicist — a specialist in hydrodynamics.
- hydrofracturing — a process in which fractures in rocks below the earth's surface are opened and widened by injecting chemicals and liquids at high pressure: used especially to extract natural gas or oil.
- hype-carbonated — (of a product or service) overvalued as a result of relentless marketing and PR or intensive media exposure
- hyper-emotional — pertaining to or involving emotion or the emotions.
- hyperactivation — (biology) A form of sperm motility associated with active beating of the flagellum.
- hyperfunctional — of or relating to a function or functions: functional difficulties in the administration.
- hypersalivation — the act or process of salivating.
- hypocrystalline — (of igneous rocks) having both glass and crystalline components
- hypoproteinemia — an abnormally low concentration of protein in the blood.
- in the majority — the largest group
- indian hawthorn — a southern Chinese evergreen shrub, Raphiolepis indica, of the rose family, having shiny, leathery leaves and pinkish-white flowers in loose clusters.
- indicator light — a device for indicating that a motor vehicle is about to turn left or right; blinker
- inter-parochial — of, relating to, or financially supported by one or more church parishes: parochial churches in Great Britain.
- interior salish — in Canada, a division of the peoples who speak Salish languages
- interscholastic — between schools, or representative of different schools, especially secondary schools: interscholastic athletics.
- ironstone china — a tough durable earthenware
- isothermal-line — Meteorology. a line on a weather map or chart connecting points having equal temperature.
- javelin thrower — a person who throws a javelin
- jerusalem thorn — See under Christ's-thorn.
- john of austria — ("Don John") 1547?–78, Spanish naval commander and general: victor at the battle of Lepanto.
- judeo-christian — of or relating to the religious writings, beliefs, values, or traditions held in common by Judaism and Christianity.
- keratoacanthoma — (pathology) A common low-grade malignancy of the skin.
- knight bachelor — bachelor (def 3).
- labyrinthodonts — Plural form of labyrinthodont.
- laryngotracheal — of, relating to, or involving the larynx and trachea.
- learn the ropes — become familiar with sth
- length over all — Nautical. the entire length of a vessel, measured from the foremost point of the bow to the aftermost point of the stern.
- longhorn cattle — cattle of a long-horned breed, usually red or variegated, formerly common in SW US
- magnetorheology — the study of the relationships between the particle and fluid properties of magnetic suspensions.
- make the rounds — having a flat, circular surface, as a disk.
- man of the hour — a man who is honored by a group.