13-letter words containing a, i, r, l, o
- archaeologist — a specialist in archaeology, the scientific study of prehistoric peoples and their cultures by analysis of their artifacts, inscriptions, monuments, etc.
- archeological — of or relating to archaeology.
- archeologists — archaeology.
- archidiaconal — of or relating to an archdeacon or his office
- archipelagoes — Plural form of archipelago.
- arctic willow — a low-growing shrub, Salix arctica, of the tundra
- arcticologist — a person who specializes in arcticology.
- argilliferous — containing or yielding clay
- aristolochene — (organic compound) A bicyclic sesquiterpene produced by certain fungi.
- 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.
- arshile gorky — Arshile [ahr-sheel] /ˈɑr ʃil/ (Show IPA), (Vosdanig Adoian) 1904–48, American painter, born in Armenia.
- articulations — Plural form of articulation.
- aryepiglottic — pertaining to or connecting the arytenoid cartilage and the epiglottis.
- aspergillosis — a rare fungal infection, esp of the mucous membranes or lungs, caused by various species of Aspergillus
- aspirationals — Plural form of aspirational.
- assortatively — In an assortative way.
- assyriologist — A person who studies ancient Assyria.
- asteroid belt — the concentrations of asteroids that move around the sun mainly between the orbits of Mars and Jupiter
- astronautical — of or relating to astronautics or astronauts.
- astroparticle — (astrophysics) A subatomic particle of cosmic origin.
- astrophysical — Of or pertaining to astrophysics.
- atmospherical — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
- atrabilarious — Characterized by melancholy or gloom.
- attributional — of or relating to the act of attributing
- autographical — Relating to, or used in, the process of autography.
- bachelor girl — a young unmarried woman, esp one who is self-supporting
- bacteriocidal — Alternative spelling of bactericidal.
- bacteriologic — a branch of microbiology dealing with the identification, study, and cultivation of bacteria and with their applications in medicine, agriculture, industry, and biotechnology.
- bacteriolysin — an antibody which, when it combines with bacterial cells, causes lysis of those cells, thus destroying them
- bacteriolysis — the destruction or disintegration of bacteria
- bacteriolytic — disintegration or dissolution of bacteria.
- ballistospore — a spore, esp a fungal spore, that is forcefully ejected from its source
- balsamiferous — yielding or producing balsam
- banderilleros — Plural form of banderillero.
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- barium yellow — a yellow, crystalline compound, BaCrO 4 , used as a pigment (barium yellow)
- baroclinicity — a common state of fluid stratification in which surfaces of constant pressure and others of constant density are not parallel but intersect.
- baronial hall — a large building or room owned by a baron
- bartholinitis — Inflammation of Bartholin's cyst.
- bartholomew i — (Dimitrios Archontonis) born 1940, Archbishop of Constantinople and Ecumenical Patriarch of the Eastern Orthodox Church since 1991.
- barytocalcite — a mineral, double carbonate of calcium and barium, CaCO 3 ⋅BaCO 3 , usually found in veins of lead minerals.
- basso rilievo — bas-relief
- basso-relievo — bas-relief
- baton twirler — someone who twirls a baton, esp a drum major or majorette
- bazillionaire — (humorous) An incredibly rich person.
- behaviourally — from a behavioural point of view
- bibliographer — an expert in bibliography
- bibliographic — a complete or selective list of works compiled upon some common principle, as authorship, subject, place of publication, or printer.
- bibliolatrous — characterized by bibliolatry
- bibliothecary — a librarian