13-letter words containing o, h, a, r, e
- ides of march — 15th March: ominous date
- immunotherapy — treatment designed to produce immunity to a disease or enhance the resistance of the immune system to an active disease process, as cancer.
- imperial moth — a yellow moth, Eacles imperialis, having a diagonal band of pinkish brown or purple: the hairy larvae feed on the leaves of hickory, oak, etc.
- in order that — used to introduce a clause of purpose
- inner harbour — a part of a harbour which is further inland
- interchondral — of or relating to cartilage or a cartilage.
- isobathytherm — a line on a chart or diagram of a body of water, connecting depths having the same temperature.
- isothermobath — a line drawn on a diagram of a vertical section of the ocean connecting all points having equal temperature.
- johann herder — Johann Gottfried von [yoh-hahn gawt-freet fuh n] /ˈyoʊ hɑn ˈgɔt frit fən/ (Show IPA), 1744–1803, German philosopher and poet.
- johore strait — a narrow strait between Malaya and Singapore Island
- joseph crater — Joseph Force [fawrs,, fohrs] /fɔrs,, foʊrs/ (Show IPA), 1889–? a judge of the New York State Supreme Court: his mysterious disappearance on August 6, 1930, has never been solved.
- karaoke night — a social occasion when karaoke sessions are held for entertainment, often in a pub or bar
- katharometers — Plural form of katharometer.
- kenneth arrow — Kenneth Joseph, born 1921, U.S. economist: Nobel Prize 1972.
- kinematograph — cinematograph.
- know by heart — have memorized
- krishna menon — Vengalil Krishnan [ven-gah-leel krish-nuh n] /vɛnˈgɑ lil ˈkrɪʃ nən/ (Show IPA), 1897–1974, Indian politician and statesman.
- landownership — an owner or proprietor of land.
- lead chromate — a yellow crystalline compound, PbCrO 4 , toxic, insoluble in water: used as an industrial paint pigment.
- leather goods — products made of animal skin
- leigh-mallory — Sir Trafford Leigh [traf-erd lee] /ˈtræf ərd li/ (Show IPA), 1892–1944, British Air Force officer.
- leopard shark — a small, inshore shark, Triakis semifasciata, having distinctive black markings across the back, inhabiting Pacific coastal waters from Oregon through California.
- lethal factor — a gene that under certain conditions causes the death of an organism.
- lexicographer — a writer, editor, or compiler of a dictionary.
- lexicographic — Like a dictionary, relating to lexicography (the writing of a dictionary).
- life-or-death — life-and-death.
- literacy hour — (in England and Wales) a daily reading and writing lesson that was introduced into the national primary school curriculum in 1998 to raise standards of literacy
- lonely hearts — of or for people seeking counseling or companionship to bring love or romance into their lives: a lonely-hearts column in the newspaper.
- lonely-hearts — of or for people seeking counseling or companionship to bring love or romance into their lives: a lonely-hearts column in the newspaper.
- look ahead lr — Look Ahead Left-to-right parse, Rightmost-derivation
- lower chamber — lower house.
- maccheroncini — thin pasta tubes made from wheat flour
- machine error — an error caused by a fault or defect in a machine rather than by human error
- macrocephalic — Cephalometry. being or having a head with a large cranial capacity.
- macrocephalus — Alternative spelling of macrocephalous.
- macrolecithal — megalecithal.
- magnetographs — Plural form of magnetograph.
- magnetosphere — the outer region of the earth's ionosphere, where the earth's magnetic field controls the motion of charged particles, as in the Van Allen belts. Compare magnetopause.
- major prophet — any of a group of Old Testament prophets, including Isaiah, Jeremiah, and Ezekiel.
- manhole cover — a removable metal plate covering a shaft that leads down to a sewer or drain
- marchionesses — Plural form of marchioness.
- mare chronium — an area in the southern hemisphere of Mars, appearing as a dark region when viewed telescopically from the earth.
- marsh trefoil — buck bean.
- marx brothers — the. a US family of film comedians, esp Arthur Marx, known as Harpo (1888–1964), Herbert Marx, known as Zeppo (1901–79), Julius Marx, known as Groucho (1890–1977), and Leonard Marx, known as Chico (1886–1961). Their films include Animal Crackers (1930), Monkey Business (1931), Horsefeathers (1932), Duck Soup (1933), and A Day at the Races (1937)
- matched order — an order placed with a broker to buy a specified stock at a price above the market price with the intention of immediately selling the stock through another broker at the same price. It is designed to give the appearance of active trading in the stock.
- megaherbivore — a large herbivore, such as an elephant, weighing more than 1000kg
- megawatt hour — a unit of energy equal to the work done by a power of a million watts in one hour
- melanochroous — having dark-coloured or black skin
- membranophone — any musical instrument, as a drum, in which the sound is produced by striking, rubbing, or blowing against a membrane stretched over a frame.
- mephobarbital — The drug methylphenobarbital.