12-letter words containing a, l, r, i
- antiburglary — intended to prevent burglary
- anticlerical — opposed to the power and influence of the clergy, esp in politics
- anticultural — against culture or civilization
- antielectron — an elementary particle with a positive charge, a positron
- antifebriles — Plural form of antifebrile.
- antigropelos — waterproof leggings used to protect against mud
- antiliterate — opposed to literacy, acting against literacy
- antimalarial — effective in the treatment of malaria
- antimaterial — Lb particle physics Composed of antimatter.
- antimilitary — opposed to the military
- antiparallel — parallel but pointing in the opposite direction
- antiparticle — any of a group of elementary particles that have the same mass and spin as their corresponding particle but have opposite values for all other nonzero quantum numbers. When a particle collides with its antiparticle, mutual annihilation occurs
- antipleasure — opposed to pleasure
- antirational — opposed to rationalism
- antireligion — opposed to religion
- antiroll bar — a horizontal bar in the suspension system of some automotive vehicles, that stabilizes the body of the vehicle and thereby reduces sway, esp. during turns
- antiroyalism — Opposition to royals or royalism.
- antiroyalist — opposed to the monarchy
- antitumoural — acting against or upon tumours
- anton sailer — Anton [ahn-tohn] /ˈɑn toʊn/ (Show IPA), ("Toni") 1935–2009, Austrian skier.
- aortic valve — a semilunar valve between the aorta and the left ventricle of the heart that prevents the blood from flowing back into the left ventricle.
- aphoristical — Alternative form of aphoristic.
- apiculturist — beekeeping, especially on a commercial scale for the sale of honey.
- apostle bird — a gregarious grey-and-brown Australian nest-building bird, Struthidea cinerea
- apparitional — of or relating to an apparition or apparitions; ghostly, spectral
- appendicular — relating to an appendage or appendicle
- appletviewer — (web, testing) A simplified web browser used for testing applets. You can't browse HTML with it but you can run applets to test them before embedding them in a web page.
- applied arts — arts that are put to practical use
- appraisingly — to estimate the monetary value of; determine the worth of; assess: We had an expert appraise the house before we bought it.
- appropriable — that can be appropriated
- 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.
- 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)
- archaeologic — Pertaining to archaeology.
- archeologist — archaeology.
- archesporial — the primitive cell, or group of cells, that give rise to the cells from which spores are derived.
- archetypical — Archetypical means the same as archetypal.
- archiannelid — (zoology) Any member of the Archiannelida.
- 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.
- archive file — a single computer file that contains one or more files that have been compressed
- arctophilist — a collector of teddy bears
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- 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.
- aristolochia — any of various plants of the genus Aristolochia of the family Aristolochiaceae
- aristotelian — of or relating to Aristotle or his philosophy