13-letter words containing a, c, r, o, t
- bandicoot rat — any of three burrowing rats of the genera Bandicota and Nesokia, of S and SE Asia: family Muridae
- barbary coast — coastal region of N Africa, extending from Egypt to the Atlantic, inhabited chiefly by Berbers and once (until early 19th cent.) dominated by pirates
- barcoo salute — a movement of the hand to brush flies away from the face
- baritone clef — an F clef locating F below middle C on the third line of the staff.
- baroclinicity — a common state of fluid stratification in which surfaces of constant pressure and others of constant density are not parallel but intersect.
- baroreceptors — Plural form of baroreceptor.
- barytocalcite — a mineral, double carbonate of calcium and barium, CaCO 3 ⋅BaCO 3 , usually found in veins of lead minerals.
- basement-rock — the undifferentiated assemblage of rock (basement rock) underlying the oldest stratified rocks in any region: usually crystalline, metamorphosed, and mostly, but not necessarily, Precambrian in age.
- basic fortran — (language) A subset of Fortran.
- batch-process — to perform batch processing on (files)
- batrachotoxin — a steroidal alkaloid, C31H42N2O6, found in the skin of certain Neotropical frogs (genus Phyllobates) and used on poison arrows: one of the most powerful natural neurotoxins known
- behavioristic — the theory or doctrine that human or animal psychology can be accurately studied only through the examination and analysis of objectively observable and quantifiable behavioral events, in contrast with subjective mental states.
- beta carotene — a yellowish form of carotene: a dietary deficiency of this is associated with a greater risk of certain cancers
- beta receptor — a receptor, found on the surface of some cells of the sympathetic nervous system, that is stimulated by certain adrenergic substances: such stimulation results in certain physiological responses, such as acceleration of the action of the heart and dilatation of the arteries supplying heart and skeletal muscles
- beta-carotene — the most abundant of various isomers of carotene, C 40 H 56 , that can be converted by the body to vitamin A.
- beta-receptor — a site on a cell, as of the heart, that, upon interaction with epinephrine or norepinephrine, controls heartbeat and heart contractability, vasodilation, smooth muscle inhibition, and other physiological processes.
- bibliothecary — a librarian
- bidirectional — (of a printhead) capable of printing from left to right and from right to left
- bioelectrical — relating to electrical current generated by biological activity
- biotic factor — a living thing, as an animal or plant, that influences or affects an ecosystem: How do humans affect other biotic factors? Weather is not a biotic factor because it is not alive.
- black country — a district in the English Midlands, around Birmingham: so called from the soot and grime produced by the many local industries.
- body snatcher — (formerly) a person who robbed graves and sold the corpses for dissection
- bomber jacket — A bomber jacket is a short jacket which is gathered into a band at the waist or hips.
- booster cable — either of a pair of electric cables having clamps at each end and used for starting the engine of a vehicle whose battery is dead.
- bootlace worm — a nemertean worm, Lineus longissimus, that inhabits shingly shores and attains lengths of over 6 m (20 ft)
- brachypterous — having very short or incompletely developed wings
- bracket clock — a small clock designed to be placed on a bracket or shelf.
- breast pocket — The breast pocket of a man's coat or jacket is a pocket, usually on the inside, next to his chest.
- broad hatchet — a hatchet with a broad cutting edge.
- buoyant force — the law that a body immersed in a fluid is buoyed up by a force (buoyant force) equal to the weight of the fluid displaced by the body.
- buster collar — a round collar, similar to a lampshade in shape, that is fitted round the neck of an animal or bird, for example to prevent it removing or interfering with a dressing or other treatment
- by contraries — contrary to what is expected
- c corporation — A C corporation is a type of corporation which is taxed on its income.
- cache storage — cache (def 3).
- call to order — to request to be quiet, as to start (a meeting)
- calorifacient — (of foods) producing heat.
- campylobacter — a rod-shaped bacterium that causes infections in cattle and man. Unpasteurized milk infected with campylobacter is a common cause of gastroenteritis
- canton ginger — preserved or crystallized ginger of fine quality.
- caprification — a method of pollinating the edible fig by hanging branches of caprifig flowers in edible fig trees. Parasitic wasps in the caprifig flowers transfer pollen to the edible fig flowers
- car boot sale — A car boot sale is a sale where people sell things they own and do not want from a little stall or from the back of their car.
- carbohydrates — foods which contain carbohydrate
- carbon credit — Carbon credits are an allowance that certain companies have, permitting them to burn a certain amount of fossil fuels.
- carbon dating — Carbon dating is a system of calculating the age of a very old object by measuring the amount of radioactive carbon it contains.
- carbon offset — a compensatory measure made by an individual or company for carbon emissions, usually through sponsoring activities or projects which increase carbon dioxide absorption, such as tree planting
- carbon tissue — a sheet of paper coated with pigmented gelatine, used in the carbon process
- carbon-tissue — paper faced with a preparation of carbon or other material, used between two sheets of plain paper in order to reproduce on the lower sheet that which is written or typed on the upper.
- carbonatation — saturation or reaction with carbon dioxide.
- carbonisation — (chiefly, British) alternative spelling of carbonization.
- carbonization — Carbonization is a process in which a fuel is heated without air to leave solid porous carbon.
- carbonneutral — pertaining to or having achieved a state in which the net amount of carbon dioxide or other carbon compounds emitted into the atmosphere is reduced to zero because it is balanced by actions to reduce or offset these emissions: Since the administration installed solar panels, the campus has become carbon neutral; a carbon-neutral brewery.