12-letter words containing r, c, o, l
- argillaceous — (of sedimentary rocks and deposits) composed of very fine-grained material, such as clay, shale, etc
- aristolochia — any of various plants of the genus Aristolochia of the family Aristolochiaceae
- arms control — an agreement between two or more countries to reduce the number of weapons owned, with the aim of preventing war
- aromatically — having an aroma; fragrant or sweet-scented; odoriferous.
- articulation — Articulation is the action of producing a sound or word clearly, in speech or music.
- articulators — Plural form of articulator.
- articulatory — an act or the process of articulating: the articulation of a form; the articulation of a new thought.
- artiodactyle — (zoology) One of the Artiodactyla, a group of ungulates.
- artiodactyls — Plural form of artiodactyl.
- arts council — an organization that provides funding for a variety of arts activities
- ash-coloured — silver-grey in colour
- asphalt rock — a rock formation, usually of limestone or sandstone, containing large amounts of bitumens.
- astrological — the study that assumes and attempts to interpret the influence of the heavenly bodies on human affairs.
- astronomical — If you describe an amount, especially the cost of something as astronomical, you are emphasizing that it is very large indeed.
- atheoretical — having no connection with and not founded on theory
- autocratical — Autocratic.
- avariciously — characterized by avarice; greedy; covetous.
- bachelor pad — a flat in which a bachelor lives
- bachelorette — A bachelorette is a woman who has never married.
- bachelorhood — the state of being a bachelor.
- bachelorship — the state of being a bachelor; bachelorhood
- bacon-slicer — a machine for cutting bacon into slices
- bacteriology — Bacteriology is the science and the study of bacteria.
- ball control — the skill of controlling the ball in a game such as football or tennis
- banner cloud — a plume-shaped cloud extending downwind from an isolated mountain peak. Also called cloud banner. Compare cap cloud (def 1).
- barcalounger — a type of reclinable armchair with an extendable footrest
- barge couple — either of a pair of outside rafters along the gable end of a roof
- barometrical — (archaic) Relating to, or observed with, a barometer, barometric.
- beaver cloth — beaver1 (def 8).
- beer o’clock — the time of day when it is acceptable or customary to start drinking alcohol
- beta blocker — A beta blocker is a drug which is used to treat people who have high blood pressure or heart problems.
- beta-blocker — any of various substances that interfere with the action of the beta receptors: used primarily to reduce the heart rate or force in the prevention, management, or treatment of angina, hypertension, or arrythmias.
- bicollateral — (of a vascular bundle) having two phloem groups to the inside and outside, respectively, of the xylem
- bimorph cell — a piezoelectric transducer consisting of two crystals cemented together, used in microphones, headphones, loudspeakers, etc. to convert vibrations into a voltage output or to convert a signal voltage into vibrations that can produce audible sounds
- binary color — secondary color.
- bingo caller — the person who shouts out the numbers to bingo players
- binocularity — binocular characteristics
- biographical — Biographical facts, notes, or details are concerned with the events in someone's life.
- biomolecular — relating to a biomolecule
- bird colonel — a full colonel in the US Army
- black bryony — a climbing herbaceous Eurasian plant, Tamus communis, having small greenish flowers and poisonous red berries: family Dioscoreaceae
- black copper — a regulus of 95-percent-pure copper, produced in a blast furnace by smelting oxidized copper ores.
- black forest — wooded mountain region in SW Germany
- black grouse — a large N European grouse, Lyrurus tetrix, the male of which has a bluish-black plumage and lyre-shaped tail
- black heroin — a very potent and addictive form of heroin that is dark-colored.
- black liquor — (in making wood pulp for paper) the liquor that remains after digestion.
- black poplar — a Eurasian tree, Populus nigra
- black powder — gunpowder as used in sports involving modern muzzleloading firearms
- black scoter — a scoter of Eurasia and North America, Melanitta nigra, the adult male of which is black.
- blind corner — a corner where the view of the road ahead is completely obscured or very restricted