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18-letter words containing p, l, a, t, e

  • incremental backup — (operating system)   A kind of backup that copies all files which have changed since the date of the previous backup. The first backup of a file system should include all files - a "full backup". Call this level 0. The next backup could also be a full level 0 backup but it is usually much quicker to do a level 1 backup which will include only those files which have changed since the level 0 backup. Together the level 0 and level 1 backups will include the latest version of every file. Level 1 backups can be made until, say, the backup tape is nearly full, after which we can switch to level 2. Each level includes those files which have changed since the last backup at a lower level. The more levels you use, the longer it will take to restore the latest version of a file (or all files) if you don't know when it was last modified. Compare differential backup.
  • 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
  • input/output table — a table of all the inputs and outputs of the industries of an economy
  • inter-relationship — reciprocal relation.
  • interdependability — capable of being depended on; worthy of trust; reliable: a dependable employee.
  • interrelationships — Plural form of interrelationship.
  • interstellar space — astronomy: space between the stars
  • iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
  • isothermal process — a process that takes place without change in temperature.
  • jack-in-the-pulpit — A North American plant, Arisaema triphyllum, of the arum family, having an upright spadix arched over by a green or striped purplish-brown spathe.
  • killer application — a highly innovative, very powerful, or extremely useful computer application; esp one sufficiently important as to justify purchase of the equipment or software
  • lake pontchartrain — a shallow lagoon in SE Louisiana, linked with the Gulf of Mexico by a narrow channel, the Rigolets: resort and fishing centre. Area: 1620 sq km (625 sq miles)
  • landscape painting — art: depicting natural scenery
  • laurentian plateau — (in Canada) the wide area of Precambrian rock extending west from the Labrador coast to the basin of the Mackenzie and north from the Great Lakes to Hudson Bay and the Arctic: rich in minerals
  • lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
  • 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.
  • limestone pavement — a horizontal surface of exposed limestone in which the joints have been enlarged, cutting the surface into roughly rectangular blocks
  • linear perspective — a mathematical system for representing three-dimensional objects and space on a two-dimensional surface by means of intersecting lines that are drawn vertically and horizontally and that radiate from one point (one-point perspective) two points (two-point perspective) or several points on a horizon line as perceived by a viewer imagined in an arbitrarily fixed position.
  • little spotted cat — a small New World tiger cat, Felis tigrinus, ranging from Costa Rica to northern Argentina.
  • logical complement — (logic)   In Boolean algebra, the logical complement or negation of a Boolean value is the opposite value, given by the following truth table: A | -A --+--- T | F F | T -A is also written as A with a bar over it or with a small vertical line hanging from the right-hand end of the "-" (LaTeX \neg) or as A'. In the C programming language, it is !A and in digital circuit design, /A.
  • lone-parent family — a family in which there is only one parent
  • lower palaeolithic — the earliest of the three sections of the Palaeolithic, beginning about 3 million years ago and ending about 70 000 bc with the emergence of Neanderthal man
  • magnetic amplifier — an amplifier that applies the input signal to a primary winding and feeds an alternating current to a secondary winding where this current is modulated by the variations in the primary winding.
  • magnetic potential — a scalar quantity, analogous to the electric potential, defined at each point in a given magnetic field to be equal to the work done in bringing a unit north pole from infinity to the point.
  • maksutov telescope — a reflecting telescope in which coma and spherical aberration are reduced to a minimum by a combination of a spherical mirror and a meniscus lens placed inside the radius of curvature of the mirror.
  • malpighian tubules — one of a group of long, slender excretory tubules at the anterior end of the hindgut in insects and other terrestrial arthropods.
  • maternity hospital — birthing facility
  • may flower compact — an agreement to establish a government, entered into by the Pilgrims in the cabin of the Mayflower on November 11, 1620.
  • methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
  • mexican fire-plant — a showy plant, Euphorbia heterophylla, of the spurge family, growing in the central U.S. to central South America, having red or mottled red and white bracts.
  • microencapsulation — the process of enclosing chemical substances in microcapsules.
  • micrometer caliper — calipers with a micrometer screw, for extremely accurate measurement
  • micrometer-caliper — any of various devices for measuring minute distances, angles, etc., as in connection with a telescope or microscope.
  • micropalaeontology — the branch of palaeontology concerned with the study of microscopic fossils
  • middle paleolithic — See under Paleolithic.
  • military policeman — A military policeman is a member of the military police.
  • mineral supplement — a pill containing minerals that you take to improve your health
  • mission specialist — the crew member of a space shuttle who is assigned primary responsibility for carrying out operations related to the payload of the shuttle.
  • moccasin telegraph — the transmission of rumour or secret information; the grapevine
  • molecular spectrum — the spectrum of light emitted or absorbed by a species of molecule.
  • monophosphorylated — (biochemistry) phosphorylated with a single unit of phosphoric acid.
  • morning-after pill — a contraceptive pill containing only an estrogen and used by women within a few hours after sexual intercourse.
  • move the goalposts — to change the aims of an activity to ensure the desired results
  • myeloproliferative — (medicine) of or pertaining to the presence of an abnormal proliferation of myelopoietic cells (from bone marrow).
  • napoleon bonaparte — Jérôme [juh-rohm;; French zhey-rohm] /dʒəˈroʊm;; French ʒeɪˈroʊm/ (Show IPA), 1784–1860, king of Westphalia 1807 (brother of Napoleon I).
  • nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
  • neurodevelopmental — Of or pertaining to the development of neurological pathways in the brain.
  • neuroleptanalgesia — a semiconscious nonreactive state induced by certain drug combinations, as fentanyl with droperidol.
  • neuroophthalmology — the branch of ophthalmology that deals with the optic nerve and other nervous system structures involved in vision.
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