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12-letter words containing i, r

  • apron string — a string for tying an apron on
  • arabia felix — an ancient division of Arabia, in the S part: sometimes restricted to Yemen.
  • arabian gulf — an arm of the Arabian Sea, between SW Iran and Arabia. 600 miles (965 km) long.
  • arabica bean — a high-quality coffee bean, obtained from the tree Coffea arabica
  • aramid fiber — a fiber having resistance to high temperatures and great strength, formed from an aramid and used in materials for bulletproof vests and radial tires.
  • aran islands — a group of three islands in the Atlantic, off the W coast of the Republic of Ireland: Aranmore or Inishmore (the largest), Inishmaan, and Inisheer. Pop: 1280 (2002). Area: 46 sq km (18 sq miles)
  • arbitrageurs — Plural form of arbitrageur.
  • arbitrations — Plural form of arbitration.
  • arborio rice — variety of round-grain rice used for making risotto
  • arborization — a branching treelike appearance in certain fossils and minerals
  • archaeologic — Pertaining to archaeology.
  • archaic homo — collectively, the very robust, regionally differentiated human populations that lived in Europe, Asia, the Middle East, and Africa from 35,000 to 200,000 years ago.
  • archaization — Process of becoming or turning something more archaic.
  • archdiocesan — Relating to an archdiocese.
  • archdioceses — Plural form of archdiocese.
  • archegoniate — having archegonia
  • archeologist — archaeology.
  • archerfishes — Plural form of archerfish.
  • archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
  • archesporium — archespore.
  • archetypical — Archetypical means the same as archetypal.
  • archiannelid — (zoology) Any member of the Archiannelida.
  • archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
  • archiblastic — of, relating to, or derived from an archiblast.
  • archilochian — denoting or relating to the 7th century bc Greek poet Archilochus or his verse, esp the iambic trimeters or trochaic tetrameters used by him
  • archipallium — (anatomy) The oldest region of the brain's pallium, often considered contiguous with the olfactory cortex, but varying among species. In humans, the archipallium makes up the hippocampus.
  • archipelagic — a large group or chain of islands: the Malay Archipelago.
  • archipelagos — Plural form of archipelago.
  • archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
  • architecting — a person who engages in the profession of architecture.
  • architecture — Architecture is the art of planning, designing, and constructing buildings.
  • archive file — a single computer file that contains one or more files that have been compressed
  • archive site — (networking)   (Or "FTP site", "FTP archive") An Internet host where program source, documents, e-mail or news messages are stored for public access via anonymous FTP, Gopher, web or other document distribution system. There may be several archive sites (mirrors) for, e.g., a Usenet newsgroup though one may be recognised as the main one. FTP servers were common on the Internet for about ten years but have been largely replaced by web servers since the invention of the World-Wide Web and its HTTP protocol. Some well-known archive sites included Imperial College, UK, UUNET, USA, GNU archive site. The archie service attempted to index the contents of FTP archives, foreshadowing the indexing of the web by Google and others.
  • archosaurian — belonging to or characteristic of the archosaurs
  • arctic daisy — a daisy, Chrysanthemum arcticum, of arctic regions, having asterlike heads of white or lilac flowers.
  • arctic ocean — the ocean surrounding the North Pole, north of the Arctic Circle. Area: about 14 100 000 sq km (5 440 000 sq miles)
  • arctophilist — a collector of teddy bears
  • area bombing — aerial bombing in which bombs are dropped over the general area of a target.
  • arenaviruses — Plural form of arenavirus.
  • arfvedsonite — a type of hornblende with the composition Na3(Fe,Mg)4FeSi8O22(OH)2
  • argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
  • aria da capo — an operatic aria in three sections with the first and third sections alike and the middle section contrasting.
  • ariel sharon — Ariel, 1928–2014, Israeli military and political leader; prime minister 2001–06.
  • aripiprazole — An antipsychotic drug used in the treatment of schizophrenia etc.
  • aristocratic — Aristocratic means belonging to or typical of the aristocracy.
  • aristolochia — any of various plants of the genus Aristolochia of the family Aristolochiaceae
  • aristophanes — ?448–?380 bc, Greek comic dramatist, who satirized leading contemporary figures such as Socrates and Euripides. Eleven of his plays are extant, including The Clouds, The Frogs, The Birds, and Lysistrata
  • aristophanic — 448?–385? b.c, Athenian comic dramatist.
  • aristotelian — of or relating to Aristotle or his philosophy
  • arithmetical — Arithmetical calculations, processes, or skills involve the addition, subtraction, multiplication, or division of numbers.
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