13-letter words containing a, e, l, u, r
- balsamiferous — yielding or producing balsam
- baluster stem — a stem of a drinking glass or the like having a gradual swelling near the top or bottom.
- banded purple — any color having components of both red and blue, such as lavender, especially one deep in tone.
- barcoo salute — a movement of the hand to brush flies away from the face
- barium yellow — a yellow, crystalline compound, BaCrO 4 , used as a pigment (barium yellow)
- barrel cactus — any of several large, cylindrical, ribbed, spiny cacti of the genera Echinocactus and Ferocactus.
- battlecruiser — A large warship of a type built in the early 20th century, carrying similar armament to a battleship but faster and more lightly armored.
- battlegrounds — Plural form of battleground.
- beau brummell — any dandy or fop
- beauty parlor — A beauty parlor is a place where women can go to have beauty treatments, for example, to have their hair, nails, or makeup done.
- behaviourally — from a behavioural point of view
- beleaguerment — a blockade or siege
- bell purchase — a tackle consisting of two standing single blocks, two running single blocks, a fall, and a runner, so arranged that it gives a mechanical advantage of six, neglecting friction.
- bimolecularly — in a bimolecular fashion
- birectangular — having two right angles.
- black quarter — blackleg (def 1).
- black vulture — the Eurasian vulture, Aegypius monachus, of the family Accipitridae
- blame culture — the tendency to look for one person or organization that can be held responsible for a bad state of affairs, an accident, etc
- blast furnace — A blast furnace is a large structure in which iron ore is heated under pressure so that it melts and the pure iron metal separates out and can be collected.
- blue copperas — a salt, copper sulfate, CuSO 4 ⋅5H 2 O, occurring naturally as large transparent, deep-blue triclinic crystals, appearing in its anhydrous state as a white powder: used chiefly as a mordant, insecticide, fungicide, and in engraving.
- blue grosbeak — a grosbeak, Guiraca caerulea, of the U.S., Mexico, and Central America, the male of which is blue with two rusty bars on each wing.
- bonded labour — a system in which a person provides labour in order to pay off debts
- boundary line — a line marking one of the edges of a playing area
- brittany blue — a medium greenish blue.
- brussels lace — a fine lace with a raised or appliqué design
- bucket ladder — a series of buckets that move in a continuous chain, used to dredge riverbeds, etc, or to excavate land
- buffalo berry — a shrub (genus Shepherdia) of the oleaster family, native to W North America, with silvery leaves
- buffalo grove — a city in NE Illinois.
- bulbourethral — of or relating to the rounded mass of tissue surrounding the urethra at the root of the penis.
- bullace grape — the thick-skinned musk-scented purple grape produced by this plant: used to make wine
- bullhead rail — a rail having a cross section with a bulbous top and bottom, the top being larger
- bumble around — When someone bumbles around or bumbles about, they behave in a confused, disorganized way, making mistakes and usually not achieving anything.
- burgess shale — a bed of Cambrian sedimentary rock in the Rocky Mountains in British Columbia containing many unique invertebrate fossils
- burmese glass — an American art glass of the late 19th century, ranging from greenish-yellow to pink.
- burnham scale — the salary scale for teachers in English state schools, which is revised periodically
- 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
- butler's tray — a tray resting on or attached to an X-shaped, often folding stand, on which are kept drink bottles and glasses
- butterfly pea — any of several leguminous plants of the genus Clitoria, as C. mariana, of North America, having pale-blue flowers.
- butyraldehyde — a colourless flammable pungent liquid used in the manufacture of resins. Formula: CH3(CH2)2CHO
- by-your-leave — a request for permission (esp in the phrase without so much as a by-your-leave)
- cab rank rule — the rule that obliges barristers to take on any client in strict rotation
- calcariferous — having a spur or spurs
- call the turn — to predict successfully
- calliper rule — a measuring instrument having two parallel jaws, one fixed at right angles to the end of a calibrated scale and the other sliding along it
- camera lucida — an instrument attached to a microscope, etc to enable an observer to view simultaneously the image and a drawing surface to facilitate the sketching of the image
- candlesnuffer — an implement, or person, that extinguishes candle flames
- canon regular — a clergyman of certain religious communities following a monastic rule
- cape coloured — (formerly, in South Africa) a racial classification under apartheid for people of mixed ethnic origin
- capsule range — a small range of clothes by a particular designer, intended to be representative of the full range
- 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.