18-letter words containing d, r
- ionizing radiation — any radiation, as a stream of alpha particles or x-rays, that produces ionization as it passes through a medium.
- iridescent seaweed — a red alga, Irideae cordata, found on the Pacific coast of North America, having broad, leathery, iridescent blades.
- isidore of seville — Saint (Isidorus Hispalensis) a.d. c570–636, Spanish archbishop, historian, and encyclopedist.
- italian corn salad — a southern European plant, Valerianella eriocarpa, of the valerian family, having edible, spoon-shaped, hairy leaves and dense clusters of pale-blue flowers.
- jack of all trades — a person who is adept at many different kinds of work.
- jack-of-all-trades — a person who is adept at many different kinds of work.
- james baird weaver — James Baird, 1833–1912, U.S. politician: congressman 1879–81, 1885–89.
- japanese andromeda — an Asian evergreen shrub, Pieris japonica, of the heath family, having broad, glossy leaves and drooping clusters of whitish blossoms.
- japanese red cedar — Cryptomeria japonica, an evergreen redwood tree that grows to a height of up to 50m
- jerusalem syndrome — a delusive condition affecting some visitors to Jerusalem in which the sufferer identifies with a major figure from his or her religious background
- jet-enamelled ware — English Worcester porcelain ware of the 18th century, transfer-printed in black.
- jose de san martin — José de [haw-se th e] /hɔˈsɛ ðɛ/ (Show IPA), 1778–1850, South American general and statesman, born in Argentina: leader in winning independence for Argentina, Peru, and Chile; protector of Peru 1821–22.
- justice department — the United States federal department for enforcing federal laws
- keyword in context — (algorithm, information science) (KWIC) A document search method that creates indexes of document text or titles. Each keyword is stored in the resulting index along with some surrounding text, usually the word or phrase that precedes or follows the keyword in the text or title.
- kirkcudbrightshire — a historic county in SW Scotland.
- kirtland's warbler — a wood warbler, Dendroica kirtlandii, breeding only in north-central Michigan and wintering in the Bahamas, bluish gray above, striped with black and pale yellow below: an endangered species.
- kitchen-sink drama — a type of drama of the 1950s depicting the sordid aspects of domestic reality
- knight of the road — a tramp
- knotted cranesbill — a British wildflower, Geranium nodosum, an meadow geranium with bright pink or purple flowers
- known lazy bastard — (abuse) (KLB) A term, used among technical support staff, for a user who repeatedly asks for help with problems whose solutions are clearly explained in the documentation, and persists in doing so after having been told to RTFM. KLBs are singled out for special treatment (i.e. ridicule), especially if they have been heard to say "It's so boring to read the manual! Why don't you just tell me?". The deepest pit in Hell is reserved for KLBs whose questions reveal total ignorance of the basic concepts (e.g., "How do I make a font in Excel?", "Where do I turn on my RAM?"), and who refuse to accept that their questions are neither simple nor well-formed.
- labeled bracketing — a representation of the constituent structure of a string, as a word or sentence, comparable to a tree diagram, in which each constituent is shown in brackets and given a subscript grammatical label, with each bracketed item corresponding to a node in a tree diagram.
- labrador retriever — one of a breed of retrievers having a short, thick, oily, solid black or yellow coat, raised originally in Newfoundland.
- lambda abstraction — A term in lambda-calculus denoting a function. A lambda abstraction begins with a lower-case lambda (represented as "\" in this document), followed by a variable name (the "bound variable"), a full stop and a lambda expression (the body). The body is taken to extend as far to the right as possible so, for example an expression, \ x . \ y . x+y is read as \ x . (\ y . x+y). A nested abstraction such as this is often abbreviated to: \ x y . x + y The lambda expression (\ v . E) denotes a function which takes an argument and returns the term E with all free occurrences of v replaced by the actual argument. Application is represented by juxtaposition so (\ x . x) 42 represents the identity function applied to the constant 42. A lambda abstraction in Lisp is written as the symbol lambda, a list of zero or more variable names and a list of zero or more terms, e.g. (lambda (x y) (plus x y)) Lambda expressions in Haskell are written as a backslash, "\", one or more patterns (e.g. variable names), "->" and an expression, e.g. \ x -> x.
- land grant college — a state university established with a grant of public land
- land-grant college — a U.S. college or university (land-grant university) entitled to support from the federal government under the provisions of the Morrill Acts.
- landscape gardener — sb who designs gardens
- laning and zierler — (language) Possibly the first true working algebraic compiler. Written by J.H. Laning Jr and N. Zierler in 1953-1954 to run on MIT's Whirlwind computer.
- laugh like a drain — to laugh loudly and coarsely
- lay at the door of — to blame (a person) for
- lay down your arms — If soldiers lay down their arms, they stop fighting and give up their weapons.
- learned profession — any of the three vocations of theology, law, and medicine, commonly held to require highly advanced learning. Compare profession (def 1).
- left-eyed flounder — any of several flat-fishes of the family Bothidae, having both eyes on the left side of the head.
- limited government — confined within limits; restricted or circumscribed: a limited space; limited resources.
- lincoln's birthday — February 12, a legal holiday in some states of the U.S., in honor of the birth of Abraham Lincoln.
- lipopolysaccharide — any of a class of polysaccharides to which lipids are attached.
- liquid distributor — A liquid distributor is a device which is used to spread liquid when it enters a packed column (= a tall vessel with packing, used for separating substances).
- literal-mindedness — the quality or state of tending to take words in their literal sense
- little st. bernard — Great, a mountain pass between SW Switzerland and NW Italy, in the Pennine Alps: Napoleon led his army through it in 1800; location of a hospice. 8108 feet (2470 meters) high.
- locked-in syndrome — a condition in which a person is conscious but unable to move any part of the body except the eyes: results from damage to the brainstem
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.
- long hundredweight — a hundredweight of 112 pounds (50.8 kg), the usual hundredweight in Great Britain, but now rare in the U.S.
- long-horned beetle — any of numerous, often brightly colored beetles of the family Cerambycidae, usually with long antennae, the larva of which bores into the wood of living or decaying trees.
- lord chief justice — the presiding judge of Britain's High Court of Justice, the superior court of record for both criminal and civil cases.
- loschmidt's number — the number of molecules in one cubic centimeter of an ideal gas at standard temperature and pressure, equal to 2.687 × 10 19.
- low blood pressure — hypotension.
- lunitidal interval — the period of time between the moon's transit and the next high lunar tide.
- lyophilized powder — Lyophilized powder is a freeze-dried powder.
- madagascar jasmine — a Madagascan twining, woody vine, Stephanotis floribunda, of the milkweed family, having waxy-white, fragrant flowers.
- madeira embroidery — broderie anglaise.
- magnesium peroxide — a white, tasteless, water-insoluble powder, MgO 2 , used as an antiseptic and as an oxidizing and bleaching agent.