10-letter words starting with ar
- archiplasm — archoplasm
- 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
- archoplasm — the protoplasmic material surrounding the centrosome, formerly thought to be involved in the formation of the asters and spindle during mitosis
- archosaurs — Plural form of archosaur.
- archpriest — (formerly) a chief assistant to a bishop, performing many of his sacerdotal functions during his absence
- archrivals — Plural form of archrival.
- arcimboldi — Giuseppe [juh-sep-ee;; Italian joo-zep-pe] /dʒəˈsɛp i;; Italian dʒuˈzɛp pɛ/ (Show IPA), 1527–93, Italian painter.
- arcimboldo — Giuseppe. 1527–93, Italian painter, best remembered for painting grotesque figures composed of fruit, vegetables, and meat
- arciniegas — Germán [her-mahn] /hɛrˈmɑn/ (Show IPA), 1900–1999, Colombian author, editor, and diplomat.
- arcosolium — (in Roman catacombs) an arched recess for a sarcophagus.
- 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 opaca — the opaque area of the blastoderm surrounding the area pellucida.
- 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
- areligious — unconcerned with or indifferent to religious matters.
- arenaceous — (of sedimentary rocks and deposits) composed of sand or sandstone
- arenavirus — any of various RNA-containing viruses of the family Arenaviridae, usually transmitted to humans by contact with excreta of infected rodents.
- areography — the description of the physical features, such as the surface, atmosphere, etc, of the planet Mars
- areopagite — a member of the Areopagus, a judicial council of ancient Athens that met on the hill of that name
- argelander — Friedrich Wilhelm August [free-drikh vil-helm ou-goo st] /ˈfri drɪx ˈvɪl hɛlm ˈaʊ gʊst/ (Show IPA), 1799–1875, German astronomer.
- 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
- argus-eyed — keen-sighted; observant; vigilant
- arguteness — acuteness of mind
- argy-bargy — a wrangling argument or verbal dispute
- 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.
- arm in arm — If two people are walking arm in arm, they are walking together with their arms linked.
- armadillos — Plural form of armadillo.
- armageddon — Armageddon is a terrible battle or war that some people think will lead to the total destruction of the world or the human race.