11-letter words containing h, y, a
- aphetically — (linguistics) In an aphetic way: through aphesis.
- apocynthion — the point at which a spacecraft in lunar orbit is farthest from the moon
- apophyllite — a white, colourless, pink, or green mineral consisting of a hydrated silicate of calcium, potassium, and fluorine in tetragonal crystalline form. It occurs in cracks in volcanic rocks. Formula: KCa4(Si4O10)2(OH1F).8H2O
- apophysitis — (pathology) Inflammation of an apophysis, a bony tubercle.
- arachnology — the study of arachnids
- archaeocyte — (in sponges) a type of amoebocyte capable of developing into other types of cells, especially reproductive cells.
- archaeology — Archaeology is the study of the societies and peoples of the past by examining the remains of their buildings, tools, and other objects.
- archaically — marked by the characteristics of an earlier period; antiquated: an archaic manner; an archaic notion.
- archeometry — the branch of archaeology that deals with the dating of archaeological specimens through specific techniques, as radiocarbon dating and amino-acid dating.
- argyllshire — (until 1975) a county of W Scotland, part of Strathclyde region (1975–96), now part of Argyll and Bute
- armory show — an international art show held in a New York City armory in 1913: considered a landmark in the public and critical acceptance of modern art.
- arrhenotoky — a form of parthenogenesis which produces only male offspring
- arrhythmias — Plural form of arrhythmia.
- art history — study of art through the ages
- art therapy — a type of psychotherapy that encourages the expression of emotions through artistic activities such as painting, drawing, or sculpture; psychotherapy based on the belief that the creative process involved in the making of art is healing and life-enhancing.
- arthrectomy — surgical excision of a joint
- arthropathy — a disease of a joint
- arthroscopy — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- artsybashev — Mikhail [Russian myi-khuh-yeel] /Russian myɪ xʌˈyil/ (Show IPA), Artzybashev, Mikhail.
- artzybashev — Mikhail [myi-khuh-yeel] /myɪ xʌˈyil/ (Show IPA), 1878–1927, Russian writer.
- as anything — You use as anything after an adjective to emphasize a quality that someone has.
- ash-shaytan — (in Muslim usage) Satan; the devil.
- asphyxiants — Plural form of asphyxiant.
- asphyxiated — Simple past tense and past participle of asphyxiate.
- asphyxiates — Third-person singular simple present indicative form of asphyxiate.
- asphyxiator — to produce asphyxia in.
- astrography — The art of describing or delineating the stars; a description or mapping of the heavens.
- astrophyton — The giant basket star, an early Mesozoic invertebrate.
- atchafalaya — a river in S central Louisiana, flowing S to an inlet (Atchafalaya Bay) on the Gulf of Mexico; a heavily engineered distributary of the Mississippi. 225 miles (362 km).
- atherectomy — the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter.
- attophysics — the physics of structures and artefacts with dimensions in the attometre range or of devices, such as lasers, capable of producing pulses with a duration measured in attoseconds
- authenticly — Alternative spelling of authentically.
- autocephaly — the state of being autocephalous.
- autochthony — pertaining to autochthons; aboriginal; indigenous (opposed to heterochthonous).
- azimuthally — Astronomy, Navigation. the arc of the horizon measured clockwise from the south point, in astronomy, or from the north point, in navigation, to the point where a vertical circle through a given heavenly body intersects the horizon.
- baby shower — gift-giving party for unborn baby
- baby-mother — a young mother who has been abandoned by the baby's father just before or after the birth
- babyishness — The state or quality of being babyish.
- bacchylides — flourished 5th century b.c, Greek poet.
- ball hockey — a game similar to ice hockey, but played on foot on a hard surface without ice, using a hard plastic ball instead of a puck
- ballyhooing — Present participle of ballyhoo.
- band theory — a theory of the electrical properties of metals, semiconductors, and insulators based on energy bands
- baranavichy — a city in W central Belarus, SW of Minsk.
- baryshnikov — Mikhail. born 1948, Soviet-born ballet dancer, who defected (1974) to the West while on tour with the Kirov Ballet: director (1980–90) of the American Ballet Theatre
- basil thyme — a plant, Acinos thymoides, of the mint family, having egg-shaped leaves and purplish flowers.
- basil-thyme — a European plant, Acinos arvensis, having clusters of small violet-and-white flowers: family Lamiaceae
- bathygraphy — The scientific description of the depth of the ocean.
- bathymetric — Of, pertaining to, or derived from bathymetry.
- bathyscaphe — a navigable, submersible vessel for exploring the depths of the ocean, having a separate, overhead chamber filled with gasoline for buoyancy and iron or steel weights for ballast.
- bathysphere — a strong steel deep-sea diving sphere, lowered by cable