12-letter words containing h, o
- half-section — a part that is cut off or separated.
- half-serious — of, showing, or characterized by deep thought.
- haliplankton — plankton living in sea water
- hall bedroom — a small bedroom off a corridor, esp. a small bedroom formed by partitioning off the end of an upstairs corridor
- hall of fame — a national shrine in New York City commemorating the names of outstanding Americans.
- hall process — a process in which aluminum is refined by electrolytic reduction of alumina fused with cryolite.
- halls of ivy — an institution of higher learning; university or college; the academic world.
- hallucinator — One whose judgment and acts are affected by hallucinations; one who errs on account of his hallucinations.
- hallucinogen — a substance that produces hallucinations.
- hallucinosis — a mental state characterized by repeated hallucinations.
- halobacteria — Plural form of halobacterium.
- halogen lamp — a gas-filled, high-intensity incandescent lamp having a tungsten filament and containing a small amount of a halogen, such as iodine, that vaporizes on heating and redeposits any evaporated tungsten particles back onto the filament: used especially in motion-picture projectors and automobile headlights.
- halogenating — Present participle of halogenate.
- halogenation — (chemistry) The reaction of a halogen with something, especially the replacement of a hydrogen atom of an organic compound with a halogen one.
- halotolerant — (biology) Able to tolerate a high concentration of salt in its environment.
- halotrichite — a mineral, iron alum, isomorphous with pickeringite, occurring in the form of yellowish fibers.
- halton hills — a city in SE Ontario, in S Canada, near Toronto.
- hamartiology — the doctrine of sin in Christian theology
- hambletonian — one of a superior strain of American trotting horses descended from the stallion Hambletonian.
- hammarskjold — Dag Hjalmar [dahg yahl-mahr] /dɑg ˈyɑl mɑr/ (Show IPA), 1905–61, Swedish statesman: Secretary General of the United Nations 1953–61; Nobel Peace Prize 1961.
- hammer throw — a field event in which the hammer is thrown for distance.
- hamming code — (algorithm) Extra, redundant bits added to stored or transmitted data for the purposes of error detection and correction. Named after the mathematician Richard Hamming, Hamming codes greatly improve the reliability of data, e.g. from distant space probes, where it is impractical, because of the long transmission delay, to correct errors by requesting retransmission.
- hand of writ — handwriting; penmanship.
- hand to hand — of, belonging to, using, or used by the hand.
- hand-holding — the act of holding hands, especially as a sign or token of affection.
- hand-me-down — an article of clothing passed on to another person after being used, outgrown, etc.: The younger children wore the hand-me-downs of the older ones.
- hand-to-hand — close to one's adversary; at close quarters: hand-to-hand combat.
- handsomeness — The quality of being handsome.
- handypersons — Plural form of handyperson.
- hangchow bay — a bay of the East China Sea.
- hanging post — a post from which a door, gate, etc., is hung.
- hangtown fry — a type of omelet to which fried oysters, bacon, and sometimes onions are added.
- hanover park — a city in NE Illinois.
- hansa yellow — a pigment derived from coal tar, characterized chiefly by its brilliant yellow color.
- hansom (cab) — a 19th-cent. two-wheeled covered carriage for two passengers, pulled by one horse: the driver's seat is above and behind the cab
- happy couple — two people in a happy romantic relationship, especially two people who have just married
- haptoglobins — Plural form of haptoglobin.
- harbormaster — A harbormaster is the official in charge of a harbor.
- harbour dues — the fees or charges paid for using a harbour
- harbour seal — a common earless seal, Phoca vitulina, that is greyish-black with paler markings: found off the coasts of North America, N Europe, and NE Asia
- hard done by — If you feel hard done by, you feel that you have not been treated fairly.
- hard-favored — South Midland U.S. (of a person) hard-featured.
- hard-mouthed — of or relating to a horse not sensitive to the pressure of a bit.
- hard-working — industrious; zealous: a hardworking family man.
- haricot bean — Haricot beans are small white beans that are eaten as a vegetable. They are often sold dried rather than fresh.
- haricot vert — green bean.
- hark back to — recall: earlier era
- harmonic law — any one of three laws governing planetary motion: each planet revolves in an ellipse, with the sun at one focus; the line connecting a planet to the sun sweeps out equal areas in equal periods of time (law of areas) or the square of the period of revolution of each planet is proportional to the cube of the semimajor axis of the planet's orbit (harmonic law)
- harmonically — pertaining to harmony, as distinguished from melody and rhythm.
- harmonichord — a musical instrument resembling an upright piano intended to fuse the sound of a violin with the functionality of a piano, the tone therefore produced using friction rather than through striking