13-letter words containing t, r
- afforestation — Afforestation is the process of planting large numbers of trees on land which has few or no trees on it.
- affreightment — a contract hiring a ship to carry goods
- aformentioned — Misspelling of aforementioned.
- african plate — a major tectonic division of the earth's crust, comprising the African continent as well as adjacent ocean basins (the Canary, Cape Verde, Angola, Cape Agulhas, Somali, Madagascar, and Natal Basins), and bounded on the north by the Eurasian and Arabian Plates, on the east by mid-ocean ridges (the Southwest Indian, Mid-Indian, and Carlsberg Ridges), on the south by the Antarctic Plate, and on the west by the Mid-Atlantic Ridge.
- after a while — some time later
- after-effects — harmful consequences, effects
- afternoon tea — Afternoon tea is a small meal you can have in the afternoon. It includes a cup of tea and food such as sandwiches and cakes.
- afterthoughts — Plural form of afterthought.
- agent-general — a representative in London of a Canadian province or an Australian state
- aggiornamento — the process of bringing up to date methods, ideas, etc
- agglomeration — An agglomeration of things is a lot of different things gathered together, often in no particular order or arrangement.
- agglomerative — gathered together into a cluster or mass.
- aggradational — (geology) Pertaining to or formed by aggradation.
- aggravatingly — in a manner that is aggravating
- aggregateness — the state of being aggregate
- aggregational — resulting from aggregation
- aggregatively — in an aggregative manner
- agriculturist — an agricultural expert
- agro-industry — the large-scale production, processing, and packaging of food using modern equipment and methods.
- agrobacterium — A soil bacterium, of the genus Agrobacterium, which can fix nitrogen, and causes the formation of crown galls in plants.
- agrobiologist — One who studies bacteria and other organisms in soil for the purpose of growing crops or feeding animals.
- agroecologist — One who studies agroecology.
- agrostography — a treatise on grasses.
- agrostologist — a person who specializes in agrostology
- agroterrorism — the use of biological agents as weapons against agricultural and food-supply industries
- ahistorically — In an ahistorical way.
- air injection — injection of liquid fuel into the cylinder of an internal-combustion engine, especially a diesel, by means of a jet of compressed air.
- air pollution — contamination of the atmosphere
- air-breathing — (of an engine, aircraft, missile, etc.) to take in air from the atmosphere to oxidize the fuel for combustion.
- air-condition — to apply air conditioning to
- air-lift pump — a pump that pumps liquid by injecting air into the lower end of an open pipe immersed in the liquid: often used in boreholes
- air-to-ground — operating between an aircraft in flight and a target on the ground
- aircraftwoman — The female equivalent of an aircraftman.
- aircraftwomen — Plural form of aircraftwoman.
- airline pilot — a person who flies planes as a profession and works for a commercial airline
- airplane turn — a midair turn made in the middle of a jump.
- airport novel — People sometimes refer to long novels such as thrillers and romances that are written in a popular style as airport novels.
- airworthiness — (of an aircraft) meeting established standards for safe flight; equipped and maintained in condition to fly.
- albert b fall — Albert Bacon, 1861–1944, U.S. politician: senator 1912–21; secretary of the Interior 1921–23; convicted in Teapot Dome scandal.
- albert edward — a mountain in SE New Guinea, in the Owen Stanley Range. Height: 3993 m (13 100 ft)
- albert nyanza — Albert3
- albertosaurus — A giant fierce carnivorous tyrannosaurus-like dinosaur, of gemus Albertosaurus, discovered in Alberta, Canada.
- alcoholometer — an instrument, such as a specially calibrated hydrometer, for determining the percentage of alcohol in a liquid
- alcoholometry — the process of measuring the concentration of alcohol in a liquid, such as in blood or a liquor
- aldosteronism — high blood pressure caused by excess aldosterone in the blood and urine
- alectryomancy — an ancient form of divination, using a rooster to select grains of food placed on letters of the alphabet.
- alfred austin — Alfred, 1835–1913, English poet: poet laureate 1896–1913.
- all over with — above in place or position: the roof over one's head.
- all-important — crucial; vital
- allergenicity — causing allergic sensitization.