16-letter words containing a, o
- around-the-clock — all day and all night
- arrival platform — the platform where a train, or passenger arrives
- arsenic trioxide — a white poisonous powder used in the manufacture of glass and as an insecticide, rat poison, and weedkiller. Formula: As2O3
- arteriocapillary — Relating to the arteries and the capillaries.
- arteriosclerosis — Arteriosclerosis is a medical condition in which the walls of your arteries become hard and thick, so your blood cannot flow through them properly.
- arteriosclerotic — degenerative changes in the arteries, characterized by thickening of the vessel walls and accumulation of calcium with consequent loss of elasticity and lessened blood flow.
- arthroscopically — By means of arthroscopy.
- arthus' reaction — a severe, local immune reaction to the injection of an antigen in a sensitized host.
- article of faith — If something is an article of faith for a person or group, they believe in it totally.
- article of virtu — an object that it interesting because of its rarity, beauty or appeal to a connoisseur
- artificial blood — a chemical emulsion, capable of carrying oxygen and carbon dioxide, for temporary use as a blood substitute in medical emergencies or when a patient objects to blood transfusions on religious grounds.
- artificial crown — the enamel-covered part of a tooth above the gum
- as a last resort — If you do something as a last resort, you do it because you can find no other way of getting out of a difficult situation or of solving a problem.
- as distinct from — If you say that you are talking about one thing as distinct from another, you are indicating exactly which thing you mean.
- as far as i know — You can use far in expressions like 'as far as I know' and 'so far as I remember' to indicate that you are not absolutely sure of the statement you are about to make or have just made, and you may be wrong.
- as is one's wont — If someone does a particular thing as is their wont, they do that thing often or regularly.
- as likely as not — very probably
- ascidian tadpole — the free-swimming larva of an ascidian, having a tadpole-like tail containing the notochord and nerve cord
- ashmolean museum — a museum, attached to Oxford University and founded in 1683, noted for its paintings and archaeological collections
- ask for feedback — If you ask for feedback, you ask someone, such as a guest in a hotel, to tell you if they enjoyed their stay and what could be improved.
- assembly routine — assembler (def 2a).
- assigned counsel — any private lawyer designated by a city or county court to represent indigent defendants in criminal cases at public expense.
- assimilationists — Plural form of assimilationist.
- assistant editor — a person who assists an editor in their work
- associate degree — An associate degree is a college degree that is awarded to a student who has completed a two-year course of study.
- associate member — a person who is a member of a club, organization etc. but has only partial rights and privileges or subordinate status
- associated state — a nation with limited sovereignty, especially a former colony that now assumes responsibility for domestic affairs but continues to depend on the colonial ruler for defense and foreign policy.
- association area — any of the regions of the cerebral cortex of the brain connected by numerous nerve fibers to all parts of both cerebral hemispheres and coordinating such higher activities as learning and reasoning.
- associationistic — Of or pertaining to associationism.
- aston dark space — the dark region between the cathode and the cathode glow in a vacuum tube, occurring when the pressure is low.
- astroarchaeology — archaeoastronomy.
- astroengineering — (scifi) The construction of megastructures in space by technologically advanced beings.
- astrometeorology — the study of the theoretical effects of astronomical bodies and forces on the earth's atmosphere.
- astronomer royal — an honorary title awarded to an eminent British astronomer: until 1972, the Astronomer Royal was also director of the Royal Greenwich Observatory
- astrophotography — the photography of celestial bodies used in astronomy
- asymptomatically — showing no evidence of disease.
- at bayonet point — done while having a bayonet pointed at one
- at full throttle — If you say that something is done at full throttle, you mean that it is done with great speed and enthusiasm.
- at liberty to do — If someone is at liberty to do something, they have been given permission to do it.
- at one's leisure — when one has free time
- atherothrombotic — (medicine) Pertaining to or caused by atherothrombosis, the sudden disruption of an atherosclerotic plaque.
- atlantic croaker — a person or thing that croaks.
- atmospheric tide — a movement of atmospheric masses caused by the gravitational attraction of the sun and moon and by daily solar heating.
- atomic mass unit — a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12. It is equivalent to 1.66 × 10–27 kg
- atomic physicist — a scientist specializing in atomic physics
- atomic structure — the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral
- atrioventricular — of, relating to, or affecting both the atria and the ventricles of the heart
- attendance order — (in Britain) an order issued by a court requiring a young offender to attend a specified place at specified times in order to carry out unpaid work, usually as an alternative to being fined
- attitude of mind — Your attitude of mind is your general way of thinking and feeling.
- attitude problem — a frame of mind perceived by others to be hostile or uncooperative