11-letter words containing a, t, r, o
- hibernation — Zoology. to spend the winter in close quarters in a dormant condition, as bears and certain other animals. Compare estivate.
- hibernators — Plural form of hibernator.
- hierophants — Plural form of hierophant.
- hippocrates — ("Father of Medicine") c460–c377 b.c, Greek physician.
- hippocratic — ("Father of Medicine") c460–c377 b.c, Greek physician.
- histography — a treatise on or description of organic tissues.
- historiated — (especially of initial letters on an illuminated manuscript) decorated with animals, flowers, or other designs that have a narrative or symbolic purpose.
- hohe tauern — an Alpine mountain range in S Austria. Highest peak, Grossglockner, 12,457 feet (3799 meters).
- holothurian — any echinoderm of the class Holothuroidea, comprising the sea cucumbers.
- holy father — a title of the pope.
- home waters — territorial waters
- homesteader — the owner or holder of a homestead.
- homopterans — Plural form of homopteran.
- homothermal — homoiothermal.
- honesty bar — an unattended area in a hotel, resort, etc, where patrons may serve themselves drinks and are expected to leave money to pay for them
- honey eater — any of numerous oscine birds of the family Meliphagidae, chiefly of Australasia, having a bill and tongue adapted for extracting the nectar from flowers.
- honey-eater — any of numerous oscine birds of the family Meliphagidae, chiefly of Australasia, having a bill and tongue adapted for extracting the nectar from flowers.
- honeyeaters — Plural form of honeyeater.
- horizontals — Plural form of horizontal.
- horned toad — an insectivorous iguanid lizard of the genus Phrynosoma, of western North America, having hornlike spines on the head and a flattened body covered with spiny scales.
- horripilant — causing horripilation, ie goose flesh, or the flesh to creep
- horripilate — to produce horripilation on.
- horrisonant — Having an unpleasant sound.
- horse-trade — to bargain or trade shrewdly.
- horsetrader — (literally) A person who buys and sells horses, especially one who makes such transactions in a clever or skillful manner.
- hospitaller — a member of the religious and military order (Knights Hospitalers or Knights of St. John of Jerusalem) originating about the time of the first Crusade (1096–99) and taking its name from a hospital at Jerusalem.
- house party — the guests at such an affair or party: The house party goes sailing today.
- house-craft — skill in domestic management
- house-train — to housebreak.
- houseboater — One who lives in a houseboat.
- housefather — a man responsible for a group of young people, as students, living in a dormitory, hostel, etc.
- housemaster — a man who is in charge of a house or a dormitory in a private school for boys.
- houseparent — one of a married couple responsible for a group of young people, as students, living in a dormitory, hostel, etc., sometimes acting solely as an advisor, but often serving as host or hostess, chaperon, housekeeper, etc.
- hovercrafts — (nonstandard) Plural form of hovercraft.
- hybernation — Obsolete spelling of hibernation.
- hydroborate — (inorganic chemistry) Any of several anions containing hydrogen bound to boron, especially the simplest one BH4-; any salt or complex containing such an anion.
- hydrogenate — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
- hydrolysate — any compound formed by hydrolysis.
- hydronation — (chemistry) The formation of a complex with hydrogen.
- hydropathic — Relating to hydropathy.
- hydrostatic — of or relating to hydrostatics.
- hydrothorax — the presence of serous fluid in one or both pleural cavities.
- hydroxylate — to introduce hydroxyl into (a compound).
- hyetography — the study of the annual and geographical distribution of rainfall.
- hymenoptera — hymenopteran.
- hyoplastral — of or relating to hyoplastra
- hypocentral — (geology) Of or pertaining to the hypocentre of an earthquake.
- hypogastric — of, relating to, or situated in the hypogastrium.
- hypogravity — The presence of an apparently decreased gravitational field (such as in an aircraft following a parabolic path).
- hypothecary — of or relating to a hypothec.