11-letter words containing a, y, o
- hexagonally — In a hexagonal manner.
- hexahydroxy — (of a molecule) containing six hydroxyl groups.
- hierography — a treatise on religion or sacred things
- hilariously — arousing great merriment; extremely funny: a hilarious story; a hilarious old movie.
- histography — a treatise on or description of organic tissues.
- hoary cress — a perennial Mediterranean plant, Cardaria (or Lepidium) draba, with small white flowers: a widespread troublesome weed: family Brassicaceae (crucifers)
- holiday job — a temporary job taken by a person during their holidays from school, college or university
- holiday pay — the salary a worker receives for days taken off work
- holiday rep — A holiday rep is someone employed by a holiday company to help look after people when they are on holiday.
- holy family — a representation in art of Mary, Joseph, and the infant Jesus.
- holy father — a title of the pope.
- holy island — Also called Lindisfarne. an island off the E coast of Northumberland, England. 3 miles (4.8 km) long.
- homicidally — In a homicidal manner.
- homoallylic — (organic chemistry) Containing a homoallyl radical.
- homoeopathy — Alternative spelling of homeopathy.
- homotypical — (biology) homotypal.
- 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 plant — any of various plants that are particularly useful in providing bees with nectar
- honey wagon — a wagon or truck for collecting and carrying excrement or manure.
- 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.
- horny coral — a gorgonian.
- horseplayer — a habitual bettor on horse races.
- hospitality — the friendly reception and treatment of guests or strangers.
- host family — family one lodges with
- hotheadedly — In a hotheaded manner.
- house party — the guests at such an affair or party: The house party goes sailing today.
- hurry along — rush, go quickly
- hyalography — the technique of writing or engraving on glass.
- hyalomelane — a type of basaltic glass
- hybernation — Obsolete spelling of hibernation.
- hydnocarpic — of or relating to hydnocarpic acid
- hydragogues — Plural form of hydragogue.
- 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.
- hydrocarbon — any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH 4 , an alkene, ethylene, C 2 H 4 , an alkyne, acetylene, C 2 H 2 , or an aromatic compound, benzene, C 6 H 6 .
- hydrocorals — any colonial marine animal of the hydrozoan order Stylasterina having a calcareous skeleton resembling that of the true corals.
- hydrocyanic — of or derived from hydrocyanic acid.
- hydrogenase — an enzyme in certain microorganisms that speeds up the reversible oxidation of hydrogen
- hydrogenate — to combine or treat with hydrogen, especially to add hydrogen to the molecule of (an unsaturated organic compound).
- hydrography — the science of the measurement, description, and mapping of the surface waters of the earth, with special reference to their use for navigation.
- hydrolysate — any compound formed by hydrolysis.
- hydromancer — One who practices hydromancy.
- hydromedusa — the medusa form of a hydrozoan.
- hydronation — (chemistry) The formation of a complex with hydrogen.
- hydropathic — Relating to hydropathy.
- hydrophobia — rabies.
- hydroplaned — Simple past tense and past participle of hydroplane.
- hydroplaner — a person who pilots a hydroplane, especially a professional speedboat racer.
- hydroplanes — Plural form of hydroplane.