15-letter words containing i, a, r
- amicable number — either of a pair of positive integers in which each member is equal to the sum of the submultiples of the other, as 220 and 284.
- amphiarthrodial — a joint permitting only slight motion, as that between the vertebrae.
- amphitheatrical — Having some of the characteristics of an amphitheatre.
- amyl propionate — a colorless liquid, C 8 H 16 O 2 , having an applelike odor, used chiefly as a scent in the manufacture of flavorings and perfume.
- an axe to grind — an ulterior motive
- anacostia river — a river in the District of Columbia flowing into the Potomac River. about 24 miles (39 km) long.
- anagrammatizing — Present participle of anagrammatize.
- anamorphic lens — a component in the optical system of a film projector for converting standard 35mm film images into wide-screen format
- 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.
- andrada e silva — José Bonifacio de [zhaw-ze baw-nee-fah-syoo di] /ʒɔˈzɛ ˌbɔ niˈfɑ syʊ dɪ/ (Show IPA), 1763–1838, Brazilian statesman and scientist: architect of Brazilian independence.
- andrew carnegie — Andrew, 1835–1919, U.S. steel manufacturer and philanthropist, born in Scotland.
- andrographolide — (organic compound) A bitter labdane diterpenoid that is the main bioactive component of the medicinal plant Andrographis paniculata, effective against certain cancers.
- andromonoecious — (of a plant species) having hermaphrodite and male flowers on the same plant
- androstenedione — a weak hormone, C19H26O2, produced by the ovaries, testes, and adrenal glands as a precursor to estrogen, testosterone, etc.: formerly taken in a concentrated tablet or capsule form as by some bodybuilders
- aneroid capsule — a box or chamber of thin metal, partially exhausted of air, used in the aneroid barometer and pressure altimeter.
- 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
- anglican church — any Church of the Anglican Communion or the Anglican Communion itself
- angustirostrate — having a narrow, beak-like part
- animal behavior — behavior (def 2).
- animal charcoal — carbon obtained from the carbonization of organic tissue of animals.
- anisotropically — Physics. of unequal physical properties along different axes. Compare isotropic (def 1).
- annapolis royal — a town in SE Canada in W Nova Scotia on an arm of the Bay of Fundy: the first settlement in Canada (1605). Pop: 550 (2001)
- anne of austria — 1601–66, wife of Louis XIII of France and daughter of Philip III of Spain: regent of France (1643–61) for her son Louis XIV
- anniversary day — a day for celebrating the foundation date of one of the former Provinces
- annuity certain — an annuity payable for a certain number of years regardless of any contingency.
- annular eclipse — an eclipse of the sun in which the moon does not cover the entire disc of the sun, so that a ring of sunlight surrounds the shadow of the moon
- annus mirabilis — a year of wonders, catastrophes, or other notable events
- 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.
- anteprohibition — before prohibition.
- anteroposterior — Relating to or directed toward both front and back.
- anthropobiology — the biological study of the human species
- anthropocentric — regarding man as the most important and central factor in the universe
- anthropogenesis — the study of the origins of man
- anthropological — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
- anthropologists — Plural form of anthropologist.
- 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.
- anthropomorphic — Anthropomorphic means relating to the idea that an animal, a god, or an object has feelings or characteristics like those of a human being.
- anthropopathism — ascription of human passions or feelings to a being or beings not human, especially to a deity.
- anthropophagite — a cannibal
- anthropopsychic — the attribution of consciousness to divine beings and nature
- anthroposophist — A proponent of anthroposophy.
- 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-conformist — a person who conforms, especially unquestioningly, to the usual practices or standards of a group, society, etc.
- anti-corruption — the act of corrupting or state of being corrupt.