15-letter words containing a, c, h, d
- multi-channeled — the bed of a stream, river, or other waterway.
- needle exchange — A needle exchange is a place where drug addicts are able to obtain new syringes in exchange for used ones.
- nicholas ridley — Nicholas, c1500–55, English bishop, reformer, and martyr.
- non-handicapped — Sometimes Offensive. physically or mentally disabled.
- nuclear warhead — a warhead containing a fission or fusion bomb.
- ocean greyhound — a fast ship, esp a liner
- old clothes man — a person who deals in second-hand clothes
- oligosaccharide — any carbohydrate yielding few monosaccharides on hydrolysis, as two, three, or four.
- on the decrease — decreasing
- orange chromide — an Asian cichlid fish, Etropus maculatus, with a brownish-orange spotted body
- organized chaos — a complex situation or process that appears chaotic while having enough order to achieve progress or goals
- orthoboric acid — boric acid (def 1). Compare ortho- (def 2).
- orthodontically — from an orthodontic point of view
- orthopaedic bed — a specially firm bed designed to help correct or ameliorate the discomfort of disorders of the spine and joints
- orthopaedically — in an orthopaedic manner
- overhead locker — a locker situated above someone's seat for storing luggage, etc
- package holiday — a holiday arranged by a travel company in which your travel and accommodation are booked for you
- packet-switched — packet switching
- paracetaldehyde — paraldehyde.
- perchloric acid — a colorless, syrupy hygroscopic liquid, HClO 4 , an acid of chlorine containing one more oxygen atom than chloric acid: used chiefly as a reagent in analytical chemistry.
- phonocardiogram — the graphic record produced by a phonocardiograph.
- phosphoric acid — any of three acids, orthophosphoric acid, H 3 PO 4 , metaphosphoric acid, HPO 3 , or pyrophosphoric acid, H 4 P 2 O 7 , derived from phosphorus pentoxide, P 2 O 5 , and various amounts of water.
- photodissociate — to split or break up molecules as a result of the absorption of photons
- pick and choose — to choose or select from among a group: to pick a contestant from the audience.
- pick-and-shovel — marked by drudgery; laborious: the pick-and-shovel work necessary to get a political campaign underway.
- pied flycatcher — a small black and white migratory bird of Europe and western Asia, Ficedula hypoleuca
- polychlorinated — having multiple chlorine atoms
- pseudo-chemical — of, used in, produced by, or concerned with chemistry or chemicals: a chemical formula; chemical agents.
- psychedelically — of or noting a mental state characterized by a profound sense of intensified sensory perception, sometimes accompanied by severe perceptual distortion and hallucinations and by extreme feelings of either euphoria or despair.
- psychedelicware — /si:"k*-del"-ik-weir/ [UK] Synonym display hack. See also smoking clover.
- psychodiagnosis — a psychological examination using psychodiagnostic techniques.
- purchase ledger — a record of a company's purchases of goods and services showing the amounts paid and due
- radiochemically — by radiochemical means or methods; from a radiochemical perspective
- radiotechnology — the technical application of any form of radiation to industry.
- raw-pack method — cold pack (def 2).
- reuben sandwich — a grilled sandwich of corned beef, Swiss cheese, and sauerkraut on rye bread.
- rez-de-chaussee — street level; ground floor.
- richard gabriel — (person) (Dick, RPG) Dr. Richard P. Gabriel. A noted SAIL LISP hacker and volleyball fanatic. Consulting Professor of Computer Science at Stanford University. Richard Gabriel is a leader in the Lisp and OOP community, with years of contributions to standardisation. He founded the successful company, Lucid Technologies, Inc.. In 1996 he was Distinguished Computer Scientist at ParcPlace-Digitalk, Inc. (later renamed ObjectShare, Inc.). See also gabriel, Qlambda, QLISP, saga.
- richard hamming — (person) Professor Richard Wesley Hamming (1915-02-11 - 1998-01-07). An American mathematician known for his work in information theory (notably error detection and correction), having invented the concepts of Hamming code, Hamming distance, and Hamming window. Richard Hamming received his B.S. from the University of Chicago in 1937, his M.A. from the University of Nebraska in 1939, and his Ph.D. in mathematics from the University of Illinois at Urbana-Champaign in 1942. In 1945 Hamming joined the Manhattan Project at Los Alamos. In 1946, after World War II, Hamming joined the Bell Telephone Laboratories where he worked with both Shannon and John Tukey. He worked there until 1976 when he accepted a chair of computer science at the Naval Postgraduate School at Monterey, California. Hamming's fundamental paper on error-detecting and error-correcting codes ("Hamming codes") appeared in 1950. His work on the IBM 650 leading to the development in 1956 of the L2 programming language. This never displaced the workhorse language L1 devised by Michael V Wolontis. By 1958 the 650 had been elbowed aside by the 704. Although best known for error-correcting codes, Hamming was primarily a numerical analyst, working on integrating differential equations and the Hamming spectral window used for smoothing data before Fourier analysis. He wrote textbooks, propounded aphorisms ("the purpose of computing is insight, not numbers"), and was a founder of the ACM and a proponent of open-shop computing ("better to solve the right problem the wrong way than the wrong problem the right way."). In 1968 he was made a fellow of the Institute of Electrical and Electronics Engineers and awarded the Turing Prize from the Association for Computing Machinery. The Institute of Electrical and Electronics Engineers awarded Hamming the Emanuel R Piore Award in 1979 and a medal in 1988.
- richard neville — Earl of (Richard Neville, Earl of Salisbury"the Kingmaker") 1428–71, English military leader and statesman.
- robe-de-chambre — a dressing gown.
- root and branch — a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
- root-and-branch — a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture.
- round character — a character in fiction whose personality, background, motives, and other features are fully delineated by the author.
- sacred mushroom — any of various hallucinogenic mushrooms, esp species of Psilocybe and Amanita, that have been eaten in rituals in various parts of the world
- saddle-stitched — having a binding in which the sections of a publication are inserted inside each other and secured through the middle fold with thread, or wire staples
- sadomasochistic — interaction, especially sexual activity, in which one person enjoys inflicting physical or mental suffering on another person, who derives pleasure from experiencing pain.
- salicylaldehyde — an oily, slightly water-soluble liquid, C 7 H 6 O 2 , having an almondlike odor: used chiefly in perfumery and in the synthesis of coumarin.
- sandwich course — A sandwich course is an educational course in which you have periods of study between periods of being at work.
- scared shitless — terrified