11-letter words containing o, t, a, y
- anthrophony — Any sound produced by human beings or their creations.
- anthroponym — a personal name.
- antibaryons — Plural form of antibaryon.
- antiboycott — opposed to boycotts
- anticyclone — An anticyclone is an area of high atmospheric pressure which causes settled weather conditions and, in summer, clear skies and high temperatures.
- antidotally — in the manner of an antidote
- antihyperon — the antiparticle of the hyperon
- antileprosy — acting against leprosy
- antimycotic — That inhibits the growth of fungi; antifungal.
- antiobesity — reducing or controlling obesity
- antiphonary — a bound collection of antiphons, esp for use in the divine office
- antipoverty — acting against poverty
- antipyrotic — relieving the pain and stimulating the healing of burns.
- antithyroid — acting against excessive thyroid activity
- antityphoid — preventing or acting against typhoid
- antlion fly — any of various neuropterous insects of the family Myrmeleontidae, which typically resemble dragonflies and are most common in tropical regions
- anxiolytics — Plural form of anxiolytic.
- aortography — an X-ray examination of the aorta
- apicoectomy — a surgical procedure to remove the end of a tooth root in endodontic therapy.
- apocalyptic — Apocalyptic means relating to the total destruction of something, especially of the world.
- apocynthion — the point at which a spacecraft in lunar orbit is farthest from the moon
- apodyterium — the changing room in an ancient Roman bathhouse
- 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.
- applicatory — suitable for application
- approbatory — approving; expressing approbation.
- archaeocyte — (in sponges) a type of amoebocyte capable of developing into other types of cells, especially reproductive cells.
- archeometry — the branch of archaeology that deals with the dating of archaeological specimens through specific techniques, as radiocarbon dating and amino-acid dating.
- arcticology — the scientific study of the Polar Regions.
- aristocracy — The aristocracy is a class of people in some countries who have a high social rank and special titles.
- aromaticity — the property of certain planar cyclic conjugated molecules, esp benzene, of behaving like unsaturated molecules and undergoing substitution reactions rather than addition as a result of delocalization of electrons in the ring
- arrhenotoky — a form of parthenogenesis which produces only male offspring
- art history — study of art through the ages
- arteriotomy — the surgical cutting of an artery or a cut made in an artery
- 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.
- artiodactyl — any placental mammal of the order Artiodactyla, having hooves with an even number of toes; an even-toed ungulate. The order includes pigs, hippopotamuses, camels, deer, cattle, and antelopes
- arytenoidal — relating to the arytenoid cartilages in the larynx and also to other parts relating to them
- ascomycetes — any fungus of the phylum Ascomycota (or class Ascomycetes), including the molds and truffles, characterized by bearing the sexual spores in a sac (as distinguished from basidiomycete).
- asphyxiator — to produce asphyxia in.
- astral body — Astronomy. a star, planet, comet, or other heavenly body.
- astrobotany — the branch of botany that investigates the possibility that plants grow on other planets
- astrocytoma — a tumour of the nervous system which originates in and consists mainly of astrocytes
- 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.
- at any cost — If you say that something must be done at any cost, you are emphasizing that it must be done, even if this requires a lot of effort or money.
- atherectomy — the removal of plaque from an artery by means of a tiny rotating cutting blade inserted through a catheter.
- atrociously — extremely or shockingly wicked, cruel, or brutal: an atrocious crime.
- 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