14-letter words containing a, l, t, o
- apotropaically — in an apotropaic manner
- apple turnover — a pastry containing apple
- appleton layer — the F region of the ionosphere
- appreciational — gratitude; thankful recognition: They showed their appreciation by giving him a gold watch.
- approach light — one of a series of lights installed along the projected centerline of an airport runway to assist a pilot in aligning the aircraft during the approach to landing at night.
- apsidal motion — the rotation of the major axis of an eccentric orbit in the plane of the orbit.
- arachnodactyly — A condition in which the fingers and hands are abnormally long and slender.
- arboricultural — Of or pertaining to the care, planting and maintenance of trees.
- arborsculpture — The art and craft technique of growing and shaping tree trunks.
- archaeologists — Plural form of archaeologist.
- arctic redpoll — a finch, Carduelis hornemanni, of the family Fringillidae, which breeds in tundra birch forest
- areal velocity — a measure of the velocity of one celestial body in orbit about another, equal to the area swept out per unit time by the vector joining the two bodies.
- aristocratical — aristocratic
- armour-plating — The armour-plating on a vehicle or building is the hard metal covering which is intended to protect it from gunfire and other missiles.
- art collection — a collection of art works
- art historical — of or relating to the history of art or to its study: art historical documents on 16th-century painting.
- art-historical — of or concerned with the history of art
- arthroplasties — Plural form of arthroplasty.
- as all get-out — to a considerable degree; greatly
- as you like it — a comedy (1599?) by Shakespeare.
- assault course — An assault course is an area of land covered with obstacles such as walls which people, especially soldiers, use to improve their skills and strength.
- assault troops — soldiers of the infantry who are specially trained to lead an attack
- assault weapon — any of various automatic and semiautomatic military firearms utilizing an intermediate-power cartridge, designed for individual use. Compare assault rifle.
- assembly point — a designated place where people have been told to wait after evacuating a building in the event of a fire or other emergency
- assert oneself — to insist on one's rights, or on being recognized
- astrobiologist — a person who studies astrobiology
- astrogeologist — a person who studies astrogeology
- astrolithology — The science of aerolites.
- astrologically — In an astrological manner.
- astronomically — of, relating to, or connected with astronomy.
- asymptotically — of or relating to an asymptote.
- at a loose end — If you are at a loose end, you are bored because you do not have anything to do and cannot think of anything that you want to do. In American English, you usually say that you are at loose ends.
- at close range — If you see or hit something at close range or from close range, you are very close to it when you see it or hit it. If you do something at a range of half a mile, for example, you are half a mile away from it when you do it.
- at loggerheads — If two or more people or groups are at loggerheads, they disagree very strongly with each other.
- at one's elbow — within easy reach
- at one's heels — just behind or following closely
- at one's peril — If you say that someone does something at their peril, you are warning them that they will probably suffer as a result of doing it.
- athlete's foot — Athlete's foot is a fungal infection in which the skin between the toes becomes cracked or peels off.
- athletic coach — a person qualified to train athletes
- atlantic ocean — the world's second largest ocean, bounded in the north by the Arctic, in the south by the Antarctic, in the west by North and South America, and in the east by Europe and Africa. Greatest depth: 9220 m (30 246 ft). Area: about 81 585 000 sq km (31 500 000 sq miles)
- atlas autocode — (language) The Autocode for the Ferranti Atlas, which may have been the first commercial computer with hardware-paged virtual memory. Whereas other autocodes were basically assembly languages, Atlas Autocode was high-level and block-structured, resembling a cross between Fortran and ALGOL 60. It had call-by value, loops, declarations, complex numbers, pointers, heap and stack storage generators, dynamic arrays, and extensible syntax.
- atomic orbital — Physics, Chemistry. a wave function describing the state of a single electron in an atom (atomic orbital) or in a molecule (molecular orbital) the electron in that state.
- attention line — a line of text after the address on a piece of correspondence, directing it to a particular person or department.
- auditory canal — the narrow passageway from the outer ear to the eardrum.
- auger-electron — a nonradiative process in which an atom in an excited state undergoes a transition to a lower state by the emission of a bound electron (Auger electron) rather than by the emission of an x-ray.
- aurothiomalate — (chemistry) A thiomalate with the addition of gold.
- author catalog — a catalog whose entries are listed by author, editor, compiler, translator, or other party considered to have responsibility for the creation or assembly of the work specified.
- 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.
- autocollimator — an instrument combining the functions of a telescope and collimator, for detecting and measuring very small deviations in a beam of light.
- autocorrelator — (electronics) A device that modifies a signal with a delayed copy of itself in order to detect any periodic signal hidden in the noise.