15-letter words containing a, s, o
- asclepiadaceous — of, relating to, or belonging to the Asclepiadaceae, a family of mostly tropical and subtropical flowering plants, including the milkweed and swallowwort, having pollen in the form of a waxy mass (pollinium): now usually regarded as a subfamily of the Apocynaceae
- asiago (cheese) — a hard, dry, sharply flavored cheese originally of N Italy
- asian shorthair — a generic term for a group of breeds of short-haired cat of Burmese type, including the Bombay
- asiatic cholera — cholera (def 1).
- assemblypersons — Plural form of assemblyperson.
- assign a policy — If you assign a policy, you transfer legal ownership of an insurance policy to another person.
- assimilationism — the theory of promoting the incorporation and mixing of different groups in society
- assimilationist — a person who favours and promotes the incorporation and mixing of different groups in society
- association law — any law governing the association of ideas
- astrobiologists — Plural form of astrobiologist.
- astrodynamicist — a person who studies astrodynamics
- astronautically — In an astronautic way.
- astronavigation — celestial navigation
- astrophotograph — a photograph of the heavenly bodies
- astrophotometry — the measurement of the intensity of light of celestial objects.
- astrophysically — from an astrophysical point of view
- astrophysicists — Plural form of astrophysicist.
- as…as they come — the most characteristic example of a class or type
- at death's door — If you say that someone is at death's door, you mean they are very ill indeed and likely to die.
- at pistol point — being under or using the threat of being shot
- at short notice — Notice is used in expressions such as 'at short notice', 'at a moment's notice' or 'at twenty-four hours' notice', to indicate that something can or must be done within a short period of time.
- at the controls — If someone is at the controls of a machine or other piece of equipment, they are operating it.
- at the hands of — If someone experiences a particular kind of treatment, especially unpleasant treatment, at the hands of a person or organization, they receive it from them.
- at your service — You can use 'at your service' after your name as a formal way of introducing yourself to someone and saying that you are willing to help them in any way you can.
- atherosclerosis — a degenerative disease of the arteries characterized by patchy thickening of the inner lining of the arterial walls, caused by deposits of fatty material; a form of arteriosclerosis
- atherosclerotic — Of, pertaining to, or afflicted with atherosclerosis.
- athletic sports — sports, esp track and field events, in which athleticism is required
- atlantic salmon — a valuable food and game fish, Salmo salar, mainly of northern coastal Atlantic waters or, when spawning, in freshwater streams tributary to the ocean.
- atlas mountains — a mountain system of N Africa, between the Mediterranean and the Sahara. Highest peak: Mount Toubkal, 4165 m (13 664 ft)
- atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atrabiliousness — The state or quality of being characterized by melancholy or glumness.
- audubon society — a North American organization devoted to the conservancy of birds
- augusta gregory — Lady Augusta (Isabella Augusta Persse) 1852–1932, Irish dramatist.
- aurora borealis — the aurora seen around the North Pole
- authentications — Plural form of authentication.
- autobiographers — Plural form of autobiographer.
- autobiographies — Plural form of autobiography.
- autocannibalism — The eating of part of one's own body.
- autodestructive — likely to cause one's own destruction
- autodidacticism — any self-directed learning or self-education
- autofluorescent — Of, pertaining to, or exhibiting autofluorescence.
- automatic focus — a system in a camera which automatically adjusts the lens so that the object being photographed is in focus, often one using infrared light to estimate the distance of the object from the camera
- autoradiographs — Plural form of autoradiograph.
- autoschediastic — offhand, with little forethought or preparation
- autostereoscopy — The display of stereoscopic images without the use of special viewing equipment.
- autotransformer — a transformer in which part of the winding is common to both primary and secondary circuits
- autotransfusion — a process in which a patient receives some of his or her own blood in a transfusion rather than a donor's blood
- autotransplants — Plural form of autotransplant.
- aviator glasses — sunglasses that look like goggles
- azobisformamide — (chemistry) azodicarbonamide.