20-letter words containing a, b, n, o, r
- feast of tabernacles — Sukkoth.
- fold-and-thrust belt — a linear or arcuate region of the earth's surface that has been subjected to severe folding and thrust faulting
- for sb's delectation — If you do something for someone's delectation, you do it to give them enjoyment or pleasure.
- forbidden transition — an electronic transition in an atom, molecule, etc, that is not permitted by electric dipole selection rules
- front-to-back engine — an engine in which the crankshaft is arranged front to back along the axis of the vehicle
- gorno-altai republic — a constituent republic of S Russia: mountainous, rising over 4350 m (14 500 ft) in the Altai Mountains of the south. Capital: Gorno-Altaisk. Pop: 202 900 (2002). Area: 92 600 sq km (35 740 sq miles)
- greatest lower bound — a lower bound that is greater than or equal to all the lower bounds of a given set: 1 is the greatest lower bound of the set consisting of 1, 2, 3. Abbreviation: glb.
- grey-crowned babbler — an insect-eating Australian bird, Pomatostomus temporalis of the family Timaliidae
- hildegard von bingen — Hildegard von (Hildegard of Bingen"Sibyl of the Rhine") 1098–1178, German nun, healer, writer, and composer.
- human parvovirus b19 — Pathology. a mild infection, most often seen in children or young adults, caused by a small virus ((the human parvovirus B19)) and marked by a blotchy rash on the cheeks, arms, and legs.
- hungarian bromegrass — a pasture grass, Bromus inermis, native to Europe, having smooth blades.
- hyperbolic cotangent — a hyperbolic function that is the ratio of cosh to sinh, being the reciprocal of tanh; coth
- indian cucumber root — a North American plant, Medeola virginiana, of the lily family, having whorled leaves, nodding, greenish-yellow flowers, and an edible root.
- information builders — Distributors of LEVEL5 OBJECT. Telephone +1 800 969 INFO.
- integration by parts — Mathematics. a method of evaluating an integral by use of the formula, ∫udv = uv − ∫vdu.
- isosorbide dinitrate — a coronary vasodilator, C 6 H 8 N 2 O 8 , used in the prophylaxis and treatment of angina.
- job control language — a language used to construct statements that identify a particular job to be run and specify the job's requirements to the operating system under which it will run. Abbreviation: JCL.
- laboratory assistant — laboratory technician, lab assistant
- laboratory diagnosis — scientific analysis of a disease
- laboratory equipment — apparatus for scientific research and experiments
- labour-saving device — a machine, gadget, etc, that reduces (human) effort, hard work or labour
- law of large numbers — the theorem in probability theory that the number of successes increases as the number of experiments increases and approximates the probability times the number of experiments for a large number of experiments.
- like a ton of bricks — (used esp of the manner of punishing or reprimanding someone) with great force; severely
- marginal probability — (in a multivariate distribution) the probability of one variable taking a specific value irrespective of the values of the others
- megabytes per second — (unit) (MBps, MB/s) Millions of bytes per second. A unit of data rate. 1 MB/s = 1,000,000 bytes per second (not 1,048,576).
- member of parliament — A Member of Parliament is a person who has been elected by the people in a particular area to represent them in a country's parliament. The abbreviation MP is often used.
- membranous labyrinth — an intricate combination of paths or passages in which it is difficult to find one's way or to reach the exit. Synonyms: maze, network, web.
- meta-dichlorobenzene — a colorless liquid, C 6 H 4 Cl 2 , soluble in alcohol and ether: used as a fumigant and insecticide.
- microwave background — a background of microwave electromagnetic radiation with a black-body spectrum discovered in 1965, understood to be the thermal remnant of the big bang with which the universe began
- moreton bay chestnut — an Australian leguminous tree, Castanospermum australe, having thin smooth bark and yellow or reddish flowers: used in furniture manufacture
- neighbourhood warden — a person employed by a local authority to patrol residential areas and deal with antisocial behaviour
- neon lamp (or tube) — a discharge lamp containing neon, that ionizes and glows with a red light (neon light) when an electric current is sent through it: used esp. in advertising signs
- nickel tetracarbonyl — nickel carbonyl.
- northern leaf blight — a disease of corn caused by the fungus Exsherohilum turcicum, characterized by elongate tan-gray elliptical spots with subsequent blighting and necrosis of leaves.
- off the beaten track — formed or shaped by blows; hammered: a dish of beaten brass.
- off-the-job training — training which is carried out away from your normal place of work
- on o's best behavior — If someone is on their best behavior, they are trying very hard to behave well.
- on the drawing board — in the planning stage
- on the starboard bow — within 45 degrees to the starboard of straight ahead
- operation barbarossa — the codename for Hitler's invasion (1941) of Russia
- operational database — (database) A database containing up-to-date, modifiable data, in contrast to a decision support database.
- order bill of lading — a bill of lading that is issued to the order of a shipper or consignee for delivery of the goods and that can be transferred by endorsement to third parties.
- para-dichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
- particle beam weapon — a weapon that fires particle beams into the atmosphere or space
- pass in one's marble — to die
- pedro juan caballero — a city in E central Paraguay.
- pentobarbital sodium — a barbiturate drug used in medicine as a sedative and hypnotic. Formula: C11H17N2O3Na
- periodontal membrane — the collagenous, fibrous connective tissue between the cementum of the tooth and the alveolus.
- pick someone's brain — to obtain information or ideas from someone
- proactive inhibition — the tendency for earlier memories to interfere with the retrieval of material learned later