18-letter words containing a, d, p, t, s
- dispatch documents — documents sent with a parcel, etc, detailing information such as contents, delivery address, etc
- dispersible tablet — A dispersible tablet is a tablet that disintegrates in water or other liquid.
- display postscript — An extended form of PostScript permitting its interactive use with bitmap displays.
- disproportionality — not in proportion; disproportionate.
- disproportionately — not proportionate; out of proportion, as in size or number.
- disproportionation — the simultaneous oxidation and reduction of a substance reacting with itself, thereby forming two dissimilar molecules, as 2C 2 H 4 →C 2 H 6 +C 2 H 2 .
- divine inspiration — insight provided by higher power
- domestic appliance — a machine used for household tasks, for example, a washing machine, refrigerator, etc.
- drainpipe trousers — trousers with very narrow legs
- east india company — the company chartered by the English government in 1600 to carry on trade in the East Indies: dissolved in 1874.
- flat address space — (architecture) The memory architecture in which any memory location can be selected from a single contiguous block by a single integer offset. Almost all popular processors have a flat address space, but the Intel x86 family has a segmented address space. A flat address space greatly simplifies programming because of the simple correspondence between addresses (pointers) and integers.
- flat-panel display — a type of thin, lightweight video display that uses liquid crystals or electroluminescence to reflect images.
- foundling hospital — an institutional home for foundlings.
- funding operations — the conversion of government floating stock or short-term debt into holdings of long-term bonds
- harnessed antelope — any African antelope of the genus Tragelaphus, especially the bushbuck, having the body marked with white stripes and spots that resemble a harness, and, in the male, long, gently spiraling horns.
- hexaphosphorylated — (biochemistry) phosphorylated with six units of phosphoric acid.
- hydroxytryptamines — Plural form of hydroxytryptamine.
- hyperaldosteronism — aldosteronism.
- hypoparathyroidism — Diminished concentration of parathyroid hormone in the blood, which causes deficiencies of calcium and phosphorus compounds in the blood and results in muscular spasms.
- hypophosphorylated — (biochemistry) phosphorylated to a less than normal extent, or less than fully.
- imploded consonant — a consonant which is pronounced with or by implosion
- independent clause — a clause that can stand alone as a sentence, containing a subject and a predicate with a finite verb, as I was there in the sentence I was there when he arrived.
- industrial dispute — disagreement between workers and managers
- justice department — the United States federal department for enforcing federal laws
- keep at a distance — to be reserved or cool toward; treat aloofly
- landscape painting — art: depicting natural scenery
- light displacement — the weight of a ship with all its permanent equipment, excluding the weight of cargo, persons, ballast, dunnage, and fuel, but usually including the weight of permanent ballast and water used to operate steam machinery.
- little spotted cat — a small New World tiger cat, Felis tigrinus, ranging from Costa Rica to northern Argentina.
- methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
- midstream operator — A midstream operator is a company that gathers, transports, and processes natural gas or oil.
- monophosphorylated — (biochemistry) phosphorylated with a single unit of phosphoric acid.
- muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
- normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
- oedipus at colonus — a tragedy by Sophocles, written toward the end of his life and produced posthumously in 401? b.c.
- optical disc drive — optical disk drive
- optical disk drive — (hardware) (Or "optical disc drive", "optical storage") A generic term for any device that reads and/or writes optical media, i.e. compact discs, DVDs and/or Blu-ray discs or future media that uses light (from a small laser) to read data off a removable, rotating disk. At least one such drive is commonly installed in most personal computers to allow them to play and/or record audio and video media and load and store data such as program installers. The floppy disk has been replaced by optical media due to its vastly greater capacity, e.g. 50,000 megabytes for a dual-layer blu-ray disc compared with 1.5 megabytes for a floppy (over 30,000 times as much).
- optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
- packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
- paediatric nursing — the branch of nursing concerned with the care of children
- parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
- pass the hat round — to collect money, as for a cause
- passing modulation — a modulation of a temporary nature.
- passing-out parade — a ceremonial parade of cadets who have completed their training
- payload specialist — an astronaut trained to handle highly complex or classified equipment carried aboard a space shuttle and to conduct experiments in space.
- pectoral sandpiper — an American sandpiper, Calidris melanotos, the male of which, when courting, inflates its chest conspicuously.
- pedal steel guitar — an oblong, floor-mounted electrified guitar, usually having ten strings, fretted with a steel bar and producing a wailing sound that is modulated by use of a foot pedal.
- pedestrian traffic — the people coming and going on foot in a street, town, etc
- pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
- per ardua ad astra — through difficulties to the stars: the motto of the RAF
- permanent hardness — hardness of water that cannot be removed by boiling as it results mainly from the presence of calcium and magnesium chlorides and sulphates