15-letter words containing a, c, e, t, i
- airborne attack — an attack involving airborne troops
- airmail sticker — a sticker that is put on airmail letters to make sure they are not sent by surface mail
- akinetic mutism — a state of apparent alertness with normal eye movements but no speech or other voluntary motion, usually due to a stroke.
- alberta clipper — (in Canada) an area of low pressure that forms in winter near the Rocky Mountains
- alignment chart — nomogram.
- allorecognition — The ability of an individual organism to distinguish its own tissues from those of another.
- alopecia areata — loss of hair in circumscribed patches.
- alpine accentor — a small bird of the sparrow family, Prunella collaris, found especially in mountain regions of S Europe and Asia
- aluminosilicate — a silicate in which some of the silicon in the tetrahedral unit SiO4 has been replaced by aluminium
- ambulance train — a train designed to carry sick or injured people
- amegakaryocytic — Characterized by a lack of megakaryocytes.
- amenity society — a voluntary society established with the purpose of preserving historic art and architecture
- america firster — a member or supporter of the America First Committee.
- american beauty — a variety of hybrid, perennial red rose
- american blight — any plant louse of the family Aphididae, characterized by a waxy secretion that appears like a jumbled mass of fine, curly, white cottony or woolly threads, as Eriosoma lanigerum (woolly apple aphid or American blight) and Prociphilus tessellatus (woolly alder aphid)
- american cotton — upland cotton.
- american gothic — a painting (1930) by Grant Wood.
- american marten — pine marten (def 2).
- american smooth — a style of competitive ballroom dancing which incorporates elements of Latin dance
- americanization — Americanization is the process by which people or countries become more and more similar to Americans and the United States.
- americanologist — a foreign expert or specialist in American cultural or political matters: a leading Americanologist in the Kremlin.
- amphitheatrical — Having some of the characteristics of an amphitheatre.
- anacostia river — a river in the District of Columbia flowing into the Potomac River. about 24 miles (39 km) long.
- anaesthetically — by means of an anaesthetic
- anchorage point — a point to which something such as the straps securing a childseat can be safely attached
- ancient history — Ancient history is the history of ancient civilizations, especially Greece and Rome.
- ancient of days — a name for God, originating in the Authorized Version of the Old Testament (Daniel 7:9)
- anfractuosities — Plural form of anfractuosity.
- angina pectoris — a sudden intense pain in the chest, often accompanied by feelings of suffocation, caused by momentary lack of adequate blood supply to the heart muscle
- anne hutchinson — Anne Marbury [mahr-buh-ree] /ˈmɑr bə ri/ (Show IPA), 1591–1643, American religious liberal, born in England: banished from Massachusetts 1637.
- annuity certain — an annuity payable for a certain number of years regardless of any contingency.
- antarctic beech — any tree of the genus Nothofagus, related to the beech and native to temperate Australasia and South America, esp Nothofagus cunninghamii of SE Australia or Nothofagus moorei of NE Australia
- antarctic ocean — the sea surrounding Antarctica, consisting of the most southerly parts of the Pacific, Atlantic, and Indian Oceans
- antarctic plate — a major tectonic division of the earth's crust, comprising Antarctica and adjacent ocean basins (the South Indian, Southeast Pacific, and Atlantic-Indian basins) and bounded on the north by the Nazca, South American, African, Indo-Australian, and Pacific plates.
- anthropocentric — regarding man as the most important and central factor in the universe
- anthropometrics — the science of measuring the size and proportions of the human body (called anthropometry), especially as applied to the design of furniture and machines.
- anti-allergenic — not aggravating an allergy; intended or prepared for those suffering from an allergy: antiallergenic cosmetics.
- anti-censorship — the act or practice of censoring.
- anti-commercial — of, relating to, or characteristic of commerce.
- anti-pathogenic — Pathology. capable of producing disease: pathogenic bacteria.
- anti-productive — having the power of producing; generative; creative: a productive effort.
- anti-republican — of, relating to, or of the nature of a republic.
- anti-technology — the branch of knowledge that deals with the creation and use of technical means and their interrelation with life, society, and the environment, drawing upon such subjects as industrial arts, engineering, applied science, and pure science.
- antibureaucracy — Opposed to bureaucracy.
- anticancer drug — a drug used to treat cancer
- anticarcinogens — Plural form of anticarcinogen.
- anticholesterol — an agent which acts against cholesterol, either as an antibody produced naturally by many mammals or in the form of a drug
- anticholinergic — blocking nerve impulses through the parasympathetic nerves
- anticipointment — (rare) The state of mind resulting from excitedly anticipating a strongly promoted product, event, film, etc, and then being disappointed when it fails to meet the expectations generated by this promotion.
- anticlericalism — opposed to the influence and activities of the clergy or the church in secular or public affairs.