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17-letter words containing p, l

  • lake winnipegosis — a lake in S Canada, in W Manitoba. Area: 5400 sq km (2086 sq miles)
  • lambda expression — (mathematics)   A term in the lambda-calculus denoting an unnamed function (a "lambda abstraction"), a variable or a constant. The pure lambda-calculus has only functions and no constants.
  • lan kanal adapter — (networking)   (LKA) A sort of external LAN interface for a BS200 computer.
  • landscape painter — artist who depicts natural scenery
  • landscaped garden — a garden that has been artistically designed
  • language planning — the development of policies or programs designed to direct or change language use, as through the establishment of an official language, the standardization or modernization of a language, or the development or alteration of a writing system.
  • laplace transform — a map of a function, as a signal, defined especially for positive real values, as time greater than zero, into another domain where the function is represented as a sum of exponentials.
  • lares and penates — household gods
  • larmor precession — the precession of charged particles, as electrons, placed in a magnetic field, the frequency of the precession (Larmor frequency) being equal to the electronic charge times the strength of the magnetic field divided by 4π times the mass.
  • laryngopharyngeal — of, relating to, or involving the larynx and pharynx.
  • least fixed point — (mathematics)   A function f may have many fixed points (x such that f x = x). For example, any value is a fixed point of the identity function, (\ x . x). If f is recursive, we can represent it as f = fix F where F is some higher-order function and fix F = F (fix F). The standard denotational semantics of f is then given by the least fixed point of F. This is the least upper bound of the infinite sequence (the ascending Kleene chain) obtained by repeatedly applying F to the totally undefined value, bottom. I.e. fix F = LUB {bottom, F bottom, F (F bottom), ...}. The least fixed point is guaranteed to exist for a continuous function over a cpo.
  • least upper bound — an upper bound that is less than or equal to all the upper bounds of a particular set. 3 is the least upper bound of the set consisting of 1, 2, 3. Abbr.: lub.
  • legal proceedings — court case
  • leizhou peninsula — a peninsula of SE China, in SW Guangdong province, separated from Hainan Island by Hainan Strait
  • lempert operation — fenestration (def 3c).
  • lepidopterologist — One who studies lepidopterology.
  • lesser periwinkle — a Eurasian apocynaceous evergreen plant of the genus Vinca,; V. minor, having trailing stems and blue flowers
  • let something rip — If you let something rip, you do it as quickly or as forcefully as possible. You can say 'let it rip' or 'let her rip' to someone when you want them to make a vehicle go as fast as it possibly can.
  • level compensator — an automatic gain control device used in the receivers of telegraphic circuits.
  • lexicographically — the writing, editing, or compiling of dictionaries.
  • liberty of speech — freedom of speech.
  • life imprisonment — long-term prison sentence
  • life of the party — most lively, outgoing person
  • lighthouse keeper — a person who mans a lighthouse and makes sure that the light is working properly
  • ligurian republic — the republic in NW Italy set up by Napoleon in 1797, incorporated into France in 1805, and united with the Kingdom of Sardinia in 1814.
  • lincoln's sparrow — a North American sparrow, Melospiza lincolnii, having a buff breast with black streaks.
  • linear dependence — (in linear algebra) the property of a set of elements in a vector space in which at least one of the vectors in the set can be written as a linear combination of the others.
  • lipopolysaccaride — a molecule, consisting of lipid and polysaccharide components, that is the main constituent of the cell walls of Gram-negative bacteria
  • liquid petrolatum — mineral oil.
  • liquid propellant — a rocket propellant in liquid form.
  • lisp machine lisp — (language)   An extension of Maclisp, now called Zetalisp.
  • literacy campaign — a campaign designed to reduce illiteracy and promote literacy in a country, area, etc
  • lithostratigraphy — the study or character of stratified rocks based solely on their physical and petrographic features.
  • load displacement — the weight, in long tons, of a cargo vessel loaded so that the summer load line touches the surface of the water.
  • loco primo citato — loc. primo cit.
  • loco supra citato — l.s.c.
  • logic programming — (artificial intelligence, programming, language)   A declarative, relational style of programming based on first-order logic. The original logic programming language was Prolog. The concept is based on Horn clauses. The programmer writes a "database" of "facts", e.g. wet(water). ("water is wet") and "rules", e.g. mortal(X) :- human(X). ("X is mortal is implied by X is human"). Facts and rules are collectively known as "clauses". The user supplies a "goal" which the system attempts to prove using "resolution" or "backward chaining". This involves matching the current goal against each fact or the left hand side of each rule using "unification". If the goal matches a fact, the goal succeeds; if it matches a rule then the process recurses, taking each sub-goal on the right hand side of the rule as the current goal. If all sub-goals succeed then the rule succeeds. Each time a possible clause is chosen, a "choice point" is created on a stack. If subsequent resolution fails then control eventually returns to the choice point and subsequent clauses are tried. This is known as "backtracking". Clauses may contain logic variables which take on any value necessary to make the fact or the left hand side of the rule match a goal. Unification binds these variables to the corresponding subterms of the goal. Such bindings are associated with the choice point at which the clause was chosen and are undone when backtracking reaches that choice point. The user is informed of the success or failure of his first goal and if it succeeds and contains variables he is told what values of those variables caused it to succeed. He can then ask for alternative solutions.
  • logical operation — Boolean operation.
  • lower paleolithic — See under Paleolithic.
  • lumpenproletariat — the lowest level of the proletariat comprising unskilled workers, vagrants, and criminals and characterized by a lack of class identification and solidarity.
  • lymphadenopathies — Plural form of lymphadenopathy.
  • lymphangiographic — Relating to lymphangiography.
  • lymphocytopoiesis — Lymphopoiesis.
  • m-expression lisp — (MLISP) The original "meta-language" syntax of Lisp, designed by John McCarthy in 1962. MLISP was intended for external use in place of the parenthesised S-expression syntax.
  • magnetic monopole — a hypothetical very heavy particle with an isolated magnetic north pole or magnetic south pole.
  • make no apologies — If you say that you make no apologies for what you have done, you are emphasizing that you feel that you have done nothing wrong.
  • malagasy republic — former name of Madagascar.
  • malay archipelago — an extensive island group in the Indian and Pacific oceans, SE of Asia, including the Greater and Lesser Sunda Islands, the Moluccas, and the Philippines.
  • malayo-polynesian — a family of languages extending from Madagascar to the central Pacific, including Malagasy, Malay, Indonesian, Tagalog, and Polynesian
  • manpower planning — a procedure used in organizations to balance future requirements for all levels of employee with the availability of such employees
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