19-letter words containing r, a, d, l, i, b
- national coal board — a statutory corporation set up to run Britain's nationalised coal mining industry between 1947 and 1994, at which time the industry was privatized
- normal distribution — a theoretical frequency distribution represented by a normal curve.
- olive-backed thrush — Swainson's thrush.
- optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- paradichlorobenzene — 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.
- parliament building — structure housing legislative offices
- peridental membrane — periodontal membrane.
- phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
- polycarboxylic acid — a type of carboxylic acid containing two or more carboxyl groups
- profitability study — a study of how much profit a company, organization, etc, makes or how profitable it is
- pseudo-biographical — of or relating to a person's life: He's gathering biographical data for his book on Milton.
- rag-tag and bobtail — the riffraff; rabble: The ragtag and bobtail of every nation poured into the frontier in search of gold.
- refreshable display — braille display
- registered disabled — on a local authority register under the Chronically Sick and Disabled Persons Act 1970
- relational database — an electronic database comprising multiple files of related information, usually stored in tables of rows (records) and columns (fields), and allowing a link to be established between separate files that have a matching field, as a column of invoice numbers, so that the two files can be queried simultaneously by the user.
- removable cartridge — a hard disk enclosed in a case that can be removed from the disk drive, having more storage than floppy disks.
- removable hard disk — (storage) A type of magnetic disk, or possibly magneto-optical disk which is not permanently attached to the disk drive (not a fixed disk) but which can be taken out and replaced, allowing many disks to be used in the same drive. The term "removable disk" would seem to be applicable to floppy disks but is generally reserved for hard disks in suitable cartridges such as those made by Syquest, Iomega and others. Removable disk packs were common on minicomputers such as the PDP-11 in use in the 1970s except that the drives were the size of washing machines and the disk packs as big as car wheels. Removable disks became popular on microcomputers in the 1990s as a cheap way of expanding disk space, transporting large amounts of data between computers and storing backups. Large, cheap fixed hard disks and USB memory sticks have made removable disks less attractive.
- republic of ireland — John, 1838–1918, U.S. Roman Catholic clergyman and social reformer, born in Ireland: archbishop of St. Paul, Minn., 1888–1918.
- saddle-billed stork — a large stork, Ephippiorhynchus senegalensis, of West Africa, having a white and black body and a long, red and black bill.
- simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
- submandibular gland — either of a pair of salivary glands located one on each side of and beneath the lower jaw.
- tarnished plant bug — a bug, Lygus lineolaris, of the family Miridae, that is a common and widely distributed pest of alfalfa and other legumes and of peach and other fruit trees.
- the admiralty board — (formerly) a department of the British Ministry of Defence, responsible for the administration and planning of the Royal Navy
- to turn a blind eye — If you say that someone is turning a blind eye to something bad or illegal that is happening, you mean that you think they are pretending not to notice that it is happening so that they will not have to do anything about it.
- trickle bed reactor — A trickle bed reactor is a reactor in which gravity makes a gas and a liquid flow through a bed of catalyst.
- turn a blind eye to — to pretend not to notice or ignore deliberately
- wandering albatross — a large albatross, Diomedea exulans, of southern waters, having the plumage mostly white with dark markings on the upper parts.
- wild bleeding-heart — a plant, Dicentra eximia, of the fumitory family, native to the eastern coast of the U.S., having elongated clusters of drooping, heart-shaped rose-colored or pink flowers.
- zebra-tailed lizard — a lizard, Callisaurus draconoides, inhabiting sandy deserts of Mexico and the southwestern U.S., having a long tail marked with black bands.