15-letter words containing o, c, t, n, a, r
- graviperception — the perception of gravity by plants
- great recession — the protracted worldwide economic recession following the financial crisis of 2007–08
- gregorian chant — the plain song or cantus firmus used in the ritual of the Roman Catholic Church.
- harmonic motion — periodic motion consisting of one or more vibratory motions that are symmetric about a region of equilibrium, as the motion of a vibrating string of a musical instrument.
- hay conditioner — either of two machines, one designed to crush stems of hay, the other to break and bend them, in order to cause more rapid and even drying
- heart condition — cardiac disorder
- heart's content — Anatomy. a hollow, pumplike organ of blood circulation, composed mainly of rhythmically contractile smooth muscle, located in the chest between the lungs and slightly to the left and consisting of four chambers: a right atrium that receives blood returning from the body via the superior and inferior vena cavae, a right ventricle that pumps the blood through the pulmonary artery to the lungs for oxygenation, a left atrium that receives the oxygenated blood via the pulmonary veins and passes it through the mitral valve, and a left ventricle that pumps the oxygenated blood, via the aorta, throughout the body.
- hemicraniectomy — (surgery) The surgical removal of half of the cranium to enable brain surgery; hemicraniotomy.
- hepatocarcinoma — (pathology) cancer of the liver.
- hernando cortes — Hernando [er-nahn-daw] /ɛrˈnɑn dɔ/ (Show IPA), Hernán [er-nahn] /ɛrˈnɑn/ (Show IPA), 1485–1547, Spanish conqueror of Mexico.
- 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.
- heterotolerance — (immunology) Subsequent unresponsiveness to a different agonist.
- hibernicization — the process or act of making Irish
- historicization — Act or process of historicizing.
- holocrystalline — (of igneous rocks) having only crystalline components and no glass
- 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.
- 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.
- 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.
- 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
- 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.
- hypocrystalline — (of igneous rocks) having both glass and crystalline components
- idiosyncratical — Alternative form of idiosyncratic.
- image converter — a device for producing a visual image formed by other electromagnetic radiation such as infrared or ultraviolet radiation or X-rays
- immunoreactions — Plural form of immunoreaction.
- in conversation — If you say that people are in conversation, you mean that they are talking together.
- in one's tracks — a structure consisting of a pair of parallel lines of rails with their crossties, on which a railroad train, trolley, or the like runs.
- in pari delicto — in equal fault; equally culpable or blameworthy.
- incomparability — beyond comparison; matchless or unequaled: incomparable beauty.
- inconsiderately — In an inconsiderate manner.
- inconsideration — without due regard for the rights or feelings of others: It was inconsiderate of him to keep us waiting.
- indicator board — a device that shows information, such as the arrival and departure times of trains or planes
- indicator light — a device for indicating that a motor vehicle is about to turn left or right; blinker
- indirect labour — work done in administration and sales rather than in the manufacturing of a product
- indiscretionary — lack of discretion; imprudence.
- inspection arms — a position in military drill in which the missile chamber of a weapon is open for inspection.
- insurrectionary — of, relating to, or of the nature of insurrection.
- inter-parochial — of, relating to, or financially supported by one or more church parishes: parochial churches in Great Britain.
- intercollegiate — taking place between or participating in activities between different colleges: intercollegiate athletics.
- intercolonially — in an intercolonial manner
- intercomparison — mutual comparison
- intercorrelated — to place in or bring into mutual or reciprocal relation; establish in orderly connection: to correlate expenses and income.
- interfoliaceous — situated between leaves, especially opposite leaves.
- interiorscaping — The design, installation, and maintenance of interiorscapes.
- interjaculatory — expressed by interjaculating
- interjectionary — Interjectional.