14-letter words containing a, t, i, o
- atomic physics — the branch of physics concerned with the structure and behaviour of atomic nuclei
- atomic reactor — reactor (def 4).
- atomic veteran — a veteran of the armed forces who was exposed to radioactivity during the testing or use of nuclear (atomic) weapons in World War II or subsequent wars.
- atomic warfare — war in which nuclear weapons are used
- atomic-powered — powered by atomic energy
- attention line — a line of text after the address on a piece of correspondence, directing it to a particular person or department.
- attention span — the period of time during which someone's attention is held by something in particular
- attrition rate — the rate at which customers or subscribers switch from one supplier to another
- auction bridge — a variety of bridge, now generally superseded by contract bridge, in which all the tricks made score towards the game
- audio-cassette — a cassette of tape on which sound only is recorded
- audiocassettes — Plural form of audiocassette.
- auditory canal — the narrow passageway from the outer ear to the eardrum.
- auditory nerve — either of the eighth pair of cranial nerves, which connect the ear with the brain and carry impulses relating to sound and balance
- aurothiomalate — (chemistry) A thiomalate with the addition of gold.
- austro-asiatic — a hypothetical phylum or superfamily of languages consisting of Mon-Khmer and certain other languages of India and South-East Asia. Links with Malayo-Polynesian have also been suggested
- authentication — to establish as genuine.
- authorisations — Plural form of authorisation.
- authoritarians — Plural form of authoritarian.
- authority file — a file, either on cards or in machine-readable format, in which decisions involving bibliographic records, particularly for form of entry, are recorded to establish a precedent or rule for subsequent decisions and to provide for consistency of entries.
- authorizations — Plural form of authorization.
- autoactivation — (biochemistry) autocatalysis.
- autoantibodies — Plural form of autoantibody.
- autobiographer — a person who writes the story of his or her own life
- autobiographic — marked by or dealing with one's own experiences or life history; of or in the manner of an autobiography: autobiographical material; an autobiographical novel.
- autocollimator — an instrument combining the functions of a telescope and collimator, for detecting and measuring very small deviations in a beam of light.
- autoconfiscate — (software, jargon) A term coined by Noah Friedman meaning to set up or modify a source-code distribution so that it configures and builds using the GNU project's autoconf/automake/libtools suite.
- autocovariance — (statistics) The covariance of a signal with another part of the same signal.
- autocratically — In an autocratic manner.
- autodesk, inc. — (company) The distributors of the AutoCAD CAD package. Address: Sausalito, CA, USA.
- autoionization — the process in which spontaneous decay of excited atoms or molecules results in emission of electrons, rather than photons
- automatic door — a self-opening door
- automatization — to make automatic.
- autopilot code — (jargon, humour) Code that was written by a programmer on "auto-pilot" who wasn't really thinking about what they were doing.
- autopolyploidy — having more than two haploid sets of chromosomes that are derived from the same ancestral species.
- autoradiograph — a photograph showing the distribution of a radioactive substance in a specimen. The photographic plate is exposed by radiation from the specimen
- autoreactivity — (immunology) The condition of being autoreactive.
- autoregression — (mathematics) An autoregressive process that is used to model many types of natural behaviour.
- autoregressive — (statistics) Employing autoregression, using a weighted sample of past data to predict future results.
- autoregulation — the continual automatic adjustment or self-regulation of a biochemical, physiological, or ecological system to maintain a stable state.
- autosuggestion — a process of suggestion in which the person unconsciously supplies or consciously attempts to supply the means of influencing his own behaviour or beliefs
- autotetraploid — an individual or strain whose chromosome complement consists of four copies of a single genome due to doubling of an ancestral chromosome complement
- auxiliary note — a nonharmonic note occurring between two harmonic notes
- auxiliary tone — a melodic ornamental tone following a principal tone by a step above or below and returning to the principal tone; embellishment.
- avalokitesvara — a male Bodhisattva, widely revered and identified with various persons and gods.
- aviation badge — wings.
- aviation cadet — one who trains to become an officer in an air force.
- aviation-badge — Also called aviation badge. Military Informal. a badge bearing the image of a spread pair of bird's wings with a distinctive center design, awarded to an aircrewman on completion of certain requirements.
- axial skeleton — the bones that together comprise the skull and the vertebral column
- axiomatisation — the process of reducing down to a system of basic truths, or axioms
- axiomatization — the process of reducing down to a system of basic truths, or axioms