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13-letter words containing a, l, t, h, o, r

  • hydrosulphate — a salt formed by the direct union of sulfuric acid with an organic base, especially an alkaloid, and usually more soluble than the base.
  • hydroxylation — (organic chemistry) The introduction of a hydroxyl group into a molecule, especially by the replacement of a hydrogen atom.
  • hygrometrical — Alternative form of hygrometric.
  • hypermorality — conformity to the rules of right conduct; moral or virtuous conduct.
  • hyperrational — characterized by excessive rationality
  • hypsometrical — Of or pertaining to hypsometry.
  • iatrochemical — relating to iatrochemistry or iatrochemists
  • 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.
  • interchondral — of or relating to cartilage or a cartilage.
  • kilowatt-hour — a unit of energy, equivalent to the energy transferred or expended in one hour by one kilowatt of power; approximately 1.34 horsepower-hours. Abbreviation: kWh, K.W.H., kwhr.
  • 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
  • lethal factor — a gene that under certain conditions causes the death of an organism.
  • 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
  • lithographing — Present participle of lithograph.
  • logarithmancy — Divination using logarithms.
  • logical truth — the property of being logically tautologous
  • 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.
  • lycanthropous — Lycanthropic.
  • macrolecithal — megalecithal.
  • marsh trefoil — buck bean.
  • mephobarbital — The drug methylphenobarbital.
  • metallography — the study of the structure of metals and alloys by means of microscopy.
  • methocarbamol — a substance, C 1 1 H 1 5 NO 5 , used as a muscle relaxant in combination with other drugs in the treatment of acute, painful musculoskeletal conditions.
  • methylpropane — (organic compound) isobutane.
  • microlecithal — having a small amount of yolk, as certain eggs or ova.
  • mitochondrial — (cytology) Of, or relating to mitochondria.
  • mother of all — a female parent.
  • mother-in-law — the mother of one's husband or wife.
  • nonhistorical — Not based on or drawn from history.
  • nonhysterical — not hysterical or funny
  • nontheatrical — not relating to the theatre
  • north babylon — a city on S Long Island, in SE New York.
  • north channel — a strait between SW Scotland and NE Ireland. 14 miles (23 km) wide at the narrowest point.
  • north holland — a province in W Netherlands. 1163 sq. mi. (3010 sq. km). Capital: Haarlem.
  • north sea oil — oil extracted from deposits beneath the North Sea
  • northallerton — a market town in N England, administrative centre of North Yorkshire. Pop: 15 517 (2001)
  • northeasterly — of or located in the northeast.
  • ochlocratical — Pertaining to ochlocracy.
  • of all others — above all others
  • off the rails — into or in a state of dysfunction or disorder
  • on the razzle — out enjoying oneself or celebrating, esp while drinking freely
  • openheartedly — Alt form open-heartedly.
  • orchestralist — a person who writes or arranges orchestral music
  • organ whistle — a steam or air whistle in which the jet is forced up against the thin edge of a pipe closed at the top.
  • organolithium — (organic chemistry) Describing any organic compound containing a carbon to lithium bond.
  • orthocephalic — having a medium or intermediate relation between the height of the skull and the breadth or length.
  • orthodiagonal — the axis in a crystal
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