20-letter words containing a, d, k, l
- a lick and a promise — something hastily done, esp a hurried wash
- absolute undertaking — a legally binding promise to do something that is not restricted or qualified in any way
- acadia national park — a national park in Maine, on Mount Desert Island. 44 sq. mi. (114 sq. km).
- alaska standard time — a standard time used in the zone which includes all of Alas. except the W Aleutian Islands, corresponding to the mean solar time of the 135th meridian west of Greenwich, England: it is nine hours behind Greenwich time
- backwards compatible — backward compatibility
- barrack-room ballads — a volume of poems (1892) by Rudyard Kipling, including Gunga Din, Danny Deever, and Mandalay.
- black lung (disease) — a disease of the lungs caused by the inhalation of coal dust; anthracosis
- black-bellied plover — a large plover, Pluvialis squatarola, of both the New and Old Worlds, having black underparts when in nuptial plumage.
- black-throated diver — a diving bird, Gavia arctica, found in Europe and Asia, and a rare summer visitor to the UK
- cylinder head gasket — (in an automobile engine) a gasket placed between the cylinder and the cylinder heads to avoid leaks of coolant and compression
- darkfield microscope — kind of microscope
- denali national park — a national park in S central Alaska, including Denali (mountain). 3030 sq. mi. (7850 sq. km).
- dickless workstation — (abuse) Extremely pejorative hackerism for "diskless workstation".
- diskless workstation — (computer, networking) A personal computer or workstation which has neither a hard disk nor floppy disk drive and which performs all file access via a local area network connection to a file server. The lowest level bootstrap code is stored in non-volatile storage. This uses a simple protocol such as BOOTP to request and download more sophisticated boot code and eventually, the operating system. The archtypal product was the 3Station developed by Bob Metcalfe at 3Com. Another example was the Sun 3/50. Diskless workstations are ideal when many users are running the same application. They are small, quiet, more reliable than products with disks, and help prevent both the theft of data and the introduction of viruses since the software and data available on them is controlled by the network administrator or system administrator. They do however rely on a server which becomes a disadvantage if it is heavily loaded or down. See also breath-of-life packet.
- double-trailer truck — tandem trailer (def 1).
- drunk and disorderly — If someone is charged with being drunk and disorderly, they are charged with being drunk and behaving in a noisy, offensive, or violent way in public.
- dual in-line package — (hardware) (DIL, DIP) The most common type of package for small and medium scale integrated circuits, with up to about 48 pins. The pins hang vertically from the two long edges of the rectangular package, spaced at intervals of 0.1 inch. The pins fit through holes in the circuit board to which they are soldered or into a socket.
- duck-billed dinosaur — hadrosaur.
- duck-billed platypus — platypus.
- dynamic data linking — Dynamic Data Exchange
- dynamic link library — Dynamically Linked Library
- endorsement in blank — an endorsement on a bill of exchange, cheque, etc, naming no payee and thus making the endorsed sum payable to the bearer
- federal reserve bank — a U.S. federal banking system that is under the control of a central board of governors (Federal Reserve Board) with a central bank (Federal Reserve Bank) in each of 12 districts and that has wide powers in controlling credit and the flow of money as well as in performing other functions, as regulating and supervising its member banks.
- file descriptor leak — (programming) (Or "fd leak" /F D leek/) A kind of programming bug analogous to a core leak, in which a program fails to close file descriptors ("fd"s) after file operations are completed, and thus eventually runs out of them. See leak.
- frederick william ii — 1744–97, king of Prussia 1786–97.
- frederick william iv — 1795–1861, king of Prussia 1840–61 (brother of William I of Prussia).
- hudson's bay blanket — a woollen blanket with wide stripes
- java development kit — (language, compiler) (JDK) A free Sun Microsystems product which provides the environment required for programming in Java. The JDK is available for a variety of platforms, but most notably Sun Solaris and Microsoft Windows.
- kill the fatted calf — the young of the domestic cow or other bovine animal.
- knowledge management — data technology
- like a dose of salts — very quickly indeed
- like death warmed up — very ill
- look homeward, angel — a novel (1929) by Thomas Wolfe.
- magneto-optical disk — (hardware, storage) (MO) A plastic or glass disk coated with a compound (often TbFeCo) with special optical, magnetic and thermal properties. The disk is read by bouncing a low-intensity laser off the disk. Originally the laser was infrared, but frequencies up to blue may be possible giving higher storage density. The polarisation of the reflected light depends on the polarity of the stored magnetic field. To write, a higher intensity laser heats the coating up to its Curie point, allowing its magnetisation to be altered in a way that is retained when it has cooled. Although optical, they appear as hard drives to the operating system and do not require a special filesystem (they can be formatted as FAT, HPFS, NTFS, etc.). The initial 5.25" MO drives, introduced at the end of the 1980s, were the size of a full-height 5.25" hard drive (like in IBM PC XT) and the disks looked like a CD-ROM enclosed in an old-style cartridge In 2006, a 3.5" drive has the size of 1.44 megabyte diskette drive with disks about the size of a regular 1.44MB floppy disc but twice the thickness.
- make head (n)or tail — If you say that you cannot make head nor tail of something or you cannot make head or tail of it, you are emphasizing that you cannot understand it at all.
- make head or tail of — to attempt to understand (a problem, etc)
- optical mark reading — the reading of marks by an optical device whereby the information can be stored in machine-readable form
- packed like sardines — If you say that a crowd of people are packed like sardines, you are emphasizing that they are sitting or standing so close together that they cannot move easily.
- red-winged blackbird — a North American blackbird, Agelaius phoeniceus, the male of which is black with scarlet patches, usually bordered with buff or yellow, on the bend of the wing.
- season ticket holder — a person who has a season ticket
- skull and crossbones — a representation of a front view of a human skull above two crossed bones, originally used on pirates' flags and now used as a warning sign, as in designating substances as poisons.
- south orkney islands — an uninhabited group of islands in the S Atlantic, southeast of Cape Horn: formerly a dependency of the Falkland Islands; part of the British Antarctic Territory since 1962 (claims are suspended under the Antarctic Treaty). Area: 621 sq km (240 sq miles)
- spread like wildfire — If something, especially news or a rumour, spreads like wildfire, it spreads extremely quickly.
- the luck of the draw — If you say that something is the luck of the draw, you mean that it is the result of chance and you cannot do anything about it.
- the-lady-of-the-lake — a narrative poem (1810) by Sir Walter Scott.
- to look high and low — If you say that you looked high and low for something, you are emphasizing that you looked for it in every place that you could think of.
- walking-around money — money that is carried on the person for routine expenses and minor emergencies; pocket money.
- working-capital fund — a fund established to finance operating activities in an industrial enterprise.
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