10-letter words containing r, a, t
- arbitrator — a person selected to judge a dispute; arbiter, esp. one, as in collective bargaining negotiations, named with the consent of both sides
- arboretums — Plural form of arboretum.
- arborvitae — any of a number of N. American or Far Eastern evergreen conifers, belonging chiefly to the genus Thuja
- arbutamine — Lb pharmaceutical drug A cardiac stimulant drug.
- arc secant — the angle, measured in radians, that has a secant equal to a given number. Symbol: sec −1. Abbreviation: arc sec;
- archaistic — something archaic, as a word or expression.
- archeocyte — (in sponges) a type of amoebocyte capable of developing into other types of cells, especially reproductive cells.
- archetypal — Someone or something that is archetypal has all the most important characteristics of a particular kind of person or thing and is a perfect example of it.
- archetypes — the original pattern or model from which all things of the same kind are copied or on which they are based; a model or first form; prototype.
- archetypic — Archetypical.
- archiblast — egg protoplasm
- architects — Plural form of architect.
- architrave — the lowest part of an entablature that bears on the columns
- archivists — Plural form of archivist.
- archivolts — Plural form of archivolt.
- archontate — an archon's period in office
- archpriest — (formerly) a chief assistant to a bishop, performing many of his sacerdotal functions during his absence
- arctangent — the function the value of which for a given argument is the angle in radians (between –π/2 and π/2) the tangent of which is that argument: the inverse of the tangent function
- arctic fox — a fox, Alopex lagopus, of arctic regions, whose fur is dark grey in the summer and white in the winter
- arctically — in an arctic manner
- arctogaean — of or relating to Arctogaea
- arctophile — a person who collects teddy bears or is fond of them
- arctophily — the practice of collecting teddy bears
- arcubalist — an arbalest
- area study — anthropological or sociological research intended to gather and relate data on various aspects of a geographical region and its inhabitants, as natural resources, history, language, institutions, or cultural and economic characteristics; a field investigation into human ecology.
- arefaction — the act of drying, or a dried condition
- areopagite — a member of the Areopagus, a judicial council of ancient Athens that met on the hill of that name
- argenteous — silvery.
- argenteuil — a suburb of Paris, France, with a convent (656) that became famous when Héloïse was abbess (12th century). Pop: 103 250 (2008)
- argumental — That is based on arguments. Pertaining to arguments.
- argumentum — an argument
- arguteness — acuteness of mind
- argyrodite — a rare mineral, Ag8GeS6, that contains silver, germanium, and sulphur
- arimathaea — a town in ancient Palestine. Matt. 27:57.
- ariovistus — flourished c71–58 b.c, Germanic leader of the Suevi.
- aristippus — ?435–?356 bc, Greek philosopher, who believed pleasure to be the highest good and founded the Cyrenaic school
- aristocrat — An aristocrat is someone whose family has a high social rank, especially someone who has a title.
- aristology — the art of eating
- aristotype — a process of photographic printing in which paper coated with silver chloride in gelatin is used.
- arithmancy — divination by the use of numbers, especially by the number of letters in names.
- arithmatic — Misspelling of arithmetic.
- arithmetic — Arithmetic is the part of mathematics that is concerned with the addition, subtraction, multiplication, and division of numbers.
- armipotent — strong in arms or war
- armistices — a temporary suspension of hostilities by agreement of the warring parties; truce: World War I ended with the armistice of 1918.
- aromatical — (rare) aromatic.
- aromatized — Simple past tense and past participle of aromatize.
- arpeggiate — to play an arpeggio
- arrangment — Misspelling of arrangement.
- arrenotoky — parthenogenesis in which only males are produced.
- arrestable — An arrestable offence is an offence that you can be arrested for.