13-letter words containing i, n, r
- arbitrational — relating to, involving, or resulting from arbitration
- archaeologian — (archaic) An archaeologist.
- archidiaconal — of or relating to an archdeacon or his office
- archie bunker — a poorly educated blue-collar worker, holding ultraconservative, racist, and male-chauvinist opinions.
- archimandrite — the head of a monastery or a group of monasteries
- architectonic — denoting, relating to, or having architectural qualities
- arcus senilis — an opaque circle around the cornea of the eye, often seen in elderly people
- argentiferous — containing or bearing silver
- argentine ant — a small brown ant, Iridomyrmex humilis, introduced into the southern U.S. from South America: a household and fruit pest.
- argumentation — Argumentation is the process of arguing in an organized or logical way, for example in philosophy.
- argumentative — Someone who is argumentative is always ready to disagree or start quarrelling with other people.
- arias sanchez — Oscar. born 1940, Costa Rican statesman; president (1986–90, 2006–2010); Nobel peace prize 1987
- aridification — the process by which a humid region becomes increasingly dry, as by climatic change or human interference with the ecology.
- aridity index — a number indicating how much more precipitation could be lost by evapotranspiration if it were available than is actually lost at a given location.
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- arithmetician — a person skilled in arithmetic
- arkansas city — a city in S Kansas.
- arm wrestling — a contest in which two people sit facing each other each with one elbow resting on a table, clasp hands, and each tries to force the other's arm flat onto the table while keeping his own elbow touching the table
- armamentarium — the items that comprise the material and equipment used by a physician in his professional practice
- armor-plating — The armor-plating on a vehicle or building is the hard metal covering that is intended to protect it from gunfire and other missiles.
- armstand dive — a dive starting from a handstand at the end of a springboard or a platform with the diver's back to the water.
- aromatization — the conversion of aliphatic or alicyclic compounds to aromatic hydrocarbons.
- arretine ware — a red-glazed terracotta pottery produced in Tuscany from 100 b.c. to a.d. 100 and widely traded.
- arseniuretted — combined with arsenic so as to form an arsenide.
- arsenous acid — a toxic white powder, As2O3, used to make other arsenic compounds, insecticides, and preservatives; white arsenic
- arterializing — Present participle of arterialize.
- arteriovenous — of, relating to, or affecting an artery and a vein
- artesian well — well sunk through impermeable strata receiving water from an area at a higher altitude than that of the well
- arthroconidia — Plural form of arthroconidium.
- articulations — Plural form of articulation.
- arundinaceous — resembling a reed
- ascertainable — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- ascertainably — In a way that can be ascertained.
- ascertainment — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- aspirationals — Plural form of aspirational.
- assassinators — Plural form of assassinator.
- assertiveness — confidently aggressive or self-assured; positive: aggressive; dogmatic: He is too assertive as a salesman.
- assigned risk — a risk that, under state law, is assigned to an insurer from a pool of insurers who would not otherwise accept it.
- astereognosis — inability to recognize objects by touch
- astrodynamics — the study of the motion of natural and artificial bodies in space
- astronautical — of or relating to astronautics or astronauts.
- at first hand — If you learn or experience something at first hand, you experience it yourself or learn it directly rather than being told about it by other people.
- aten asteroid — one of a small group of asteroids whose orbits cross that of the earth and whose semimajor axes are smaller than that of the earth.
- athenagoras i — (Aristocles Spyrou) 1886–1972, Archbishop Ecumenical of Constantinople and Ecumenical Patriarch of the Greek Orthodox Church 1948–72.
- atherogenesis — (medicine) The formation of atheromas, especially on the walls of the arteries.
- atomic energy — nuclear energy
- atomic number — the number of protons in the nucleus of an atom of an element
- atrociousness — The state of being atrocious.
- attitudinizer — One who attitudinizes, or practises poses.
- attributional — of or relating to the act of attributing