9-letter words containing a, t, h, r, o
- hawthorne — Nathaniel, 1804–64, U.S. novelist and short-story writer.
- hawthorns — Plural form of hawthorn.
- hawthorny — resembling or characterized by hawthorns
- heartsome — giving cheer, spirit, or courage: a heartsome wine.
- heartsore — heartsick.
- heartwood — the hard central wood of the trunk of an exogenous tree; duramen.
- heartworm — a parasitic nematode, Dirofilaria immitis, transmitted by mosquito and invading the heart and pulmonary arteries of dogs, wolves, and foxes throughout its range in tropical, subtropical and, more recently, temperate regions around the world.
- heatproof — not affected or damaged by heat, especially when placed in an oven or over a direct flame: heatproof cookware.
- hectogram — a unit of mass or weight equal to 100 grams, equivalent to 3.527 ounces avoirdupois. Abbreviation: hg.
- hektogram — a unit of mass or weight equal to 100 grams, equivalent to 3.527 ounces avoirdupois. Abbreviation: hg.
- hereabout — about this place; in this neighborhood.
- hesitator — Alternative spelling of hesitater.
- hierocrat — a person who believes in government by religious leaders
- histogram — a graph of a frequency distribution in which rectangles with bases on the horizontal axis are given widths equal to the class intervals and heights equal to the corresponding frequencies.
- historian — an expert in history; authority on history.
- hoarfrost — frost (def 2).
- hoarstone — A stone designating the bounds of an estate; a landmark.
- holarctic — belonging or pertaining to a geographical division comprising the Nearctic and Palearctic regions.
- holderbat — a bracket that supports a pipe and fastens it to a wall or surface
- homecraft — skills used in the home
- homograft — allograft.
- honeytrap — A stratagem in which irresistible bait is used to lure a victim.
- horiatiki — a traditional Greek salad consisting of tomatoes, cucumber, onion, olives, and feta cheese
- horntails — Plural form of horntail.
- horsecart — A cart drawn by a horse.
- horsemeat — The flesh of a horse as food.
- horsetail — Also called scouring rush. any nonflowering plant of the genus Equisetum, having hollow, jointed stems.
- hortation — The act of exhorting, inciting, or giving advice; exhortation.
- hortative — hortatory.
- hortatory — urging to some course of conduct or action; exhorting; encouraging: a hortatory speech.
- hortensia — Hydrangea.
- hot water — trouble; a predicament: His skipping classes will get him into real hot water when exam time comes.
- hourplate — the dial of a clock or watch
- hydration — any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 ⋅10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 ⋅H 2 O, or H 2 SO 4 , it is strongly held as water of constitution.
- hydrocast — a process in which water is collected at various depths in a device with bottles clamped together, providing data on differing water characteristics.
- hydrolant — an urgent warning of navigational dangers in the Atlantic Ocean, issued by the U.S. Navy Hydrographic Office.
- hydronaut — a person trained to work in deep-sea vessels for research and rescue purposes.
- hydrostat — an electrical device for detecting the presence of water, as from overflow or leakage.
- hygrostat — an instrument for measuring and controlling humidity.
- inhabitor — One who inhabits.
- inhalator — an apparatus designed to mix carbon dioxide and oxygen, especially for use in artificial respiration.
- kantharos — a deep bowl set upon a stem terminating in a foot and having two handles rising from the brim and curving downward to join the body.
- karpathos — an island off the SE coast of Greece, part of the Dodecanese Islands, in the Aegean Sea. 110 sq. mi. (280 sq. km).
- kurchatov — Igor Vasilievich [ee-guh r-vuh-syee-lyi-vyich] /ˈi gər vʌˈsyi lyɪ vyɪtʃ/ (Show IPA), 1903–60, Soviet nuclear physicist.
- lanthorns — Plural form of lanthorn.
- larghetto — a larghetto movement.
- lionheart — a person of exceptional courage and bravery.
- logarithm — the exponent of the power to which a base number must be raised to equal a given number; log: 2 is the logarithm of 100 to the base 10 (2 = log10 100).
- lothair i — a.d. 795?–855, king of Germany 840–843; emperor of the Holy Roman Empire 840–855 (son of Louis I).
- lotharios — Plural form of lothario.