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16-letter words containing l, a, c, e

  • optical tweezers — a laser device used to study, manipulate, or trap a microscopic object, as a microorganism or cell, with nanometer precision.
  • orbital velocity — the minimum velocity at which a body must move to maintain a given orbit.
  • organ-pipe coral — an alcyonarian coral of the genus Tubipora, occurring in tropical waters, and forming a complex colony of brick-red, vertical tubules joined at intervals by transverse plates.
  • organoleptically — In an organoleptic manner.
  • osculating plane — the plane containing the circle of curvature of a point on a given curve.
  • osteoarchaeology — the branch of archaeology that deals with the study of bones found at archaeological sites
  • over-application — the act of putting to a special use or purpose: the application of common sense to a problem.
  • over-cultivation — the act or art of cultivating.
  • over-speculation — the contemplation or consideration of some subject: to engage in speculation on humanity's ultimate destiny.
  • overaccumulation — Accumulation of too much.
  • overcapitalizing — Present participle of overcapitalize.
  • overcomplicating — Present participle of overcomplicate.
  • overdramatically — In an overdramatic manner.
  • overexcitability — to excite too much.
  • oxaloacetic acid — a crystalline organic acid, C 4 H 4 O 5 , that is an important intermediate in the Krebs cycle, where it is formed by the oxidation of malic acid and is acetylated to form citric acid: also a product of transamination reactions of aspartic acid.
  • palaeolithic man — any of various primitive types of man, such as Neanderthal man and Java man, who lived in the Palaeolithic
  • paleoclimatology — the branch of paleogeography dealing with the study of paleoclimates.
  • palmitoleic acid — a colorless, unsaturated fatty acid, C 1 6 H 3 0 O 2 , occurring in oils and fats of plants and animals.
  • palmtop computer — a computer that has a small screen and compressed keyboard and is small enough to be held in the hand, often used as a personal organizer
  • panel discussion — a formal discussion before an audience for which the topic, speakers, etc., have been selected in advance.
  • papillary muscle — one of the small bundles of muscles attached to the ventricle walls and to the chordae tendineae that tighten these tendons during ventricular contraction.
  • paratuberculosis — Johne's disease.
  • particle physics — the branch of physics that deals with the properties and behavior of elementary particles.
  • pascal's theorem — the theorem that the lines joining adjacent vertices of a hexagon intersect the same straight line if alternate vertices lie on two intersecting straight lines.
  • pathetic fallacy — the endowment of nature, inanimate objects, etc., with human traits and feelings, as in the smiling skies; the angry sea.
  • pectoralis major — the larger of the two large chest muscles that assist in movements of the shoulder and upper arm
  • pectoralis minor — the smaller of the two large chest muscles that assist in movements of the shoulder and upper arm
  • pelagic division — the biogeographic realm or zone that comprises the open seas and oceans, including water of all depths.
  • pelican crossing — place to cross road
  • pencil and paper — An archaic information storage and transmission device that works by depositing smears of graphite on bleached wood pulp. More recent developments in paper-based technology include improved "write-once" update devices which use tiny rolling heads similar to mouse balls to deposit coloured pigment. All these devices require an operator skilled at so-called "handwriting" technique. These technologies are ubiquitous outside hackerdom, but nearly forgotten inside it. Most hackers had terrible handwriting to begin with, and years of keyboarding tend to have encouraged it to degrade further. Perhaps for this reason, hackers deprecate pencil-and-paper technology and often resist using it in any but the most trivial contexts.
  • pencil sharpener — tool for sharpening pencils to a point
  • pentatonic scale — a scale having five tones to an octave, as one having intervals that correspond to the five black keys of a piano octave.
  • people's charter — the principles or movement of a party of political reformers, chiefly workingmen, in England from 1838 to 1848: so called from the document (People's Charter or National Charter) that contained a statement of their principles and demands.
  • perchloromethane — carbon tetrachloride.
  • peregrine falcon — a globally distributed falcon, Falco peregrinus, much used in falconry because of its swift flight: several subspecies are endangered.
  • perez de cuellar — Javier [hah-vyer] /hɑˈvyɛr/ (Show IPA), born 1920, Peruvian diplomat: secretary-general of the United Nations 1982–91; prime minister of Peru 2000–2001.
  • perforated ulcer — an ulcer that bursts through the stomach wall and leaks food and gastric juices into the abdominal cavity
  • periodic decimal — repeating decimal.
  • permaculturalist — a system of cultivation intended to maintain permanent agriculture or horticulture by relying on renewable resources and a self-sustaining ecosystem.
  • perpendicularity — vertical; straight up and down; upright.
  • personal effects — belongings
  • personality cult — deliberately cultivated adulation of a person, esp a political leader
  • personnel agency — an agency for placing employable persons in jobs; employment agency.
  • persulfuric acid — Also called Caro's acid, permonosulfuric acid, peroxymonosulfuric acid, peroxysulfuric acid. a white, crystalline solid, H 2 SO 5 , used as an oxidizing agent for certain organic compounds.
  • peter pan collar — a close-fitting flat or rolled collar with rounded ends that meet in front of a high, round neckline.
  • phenomenological — the study of phenomena.
  • phylogenetically — the development or evolution of a particular group of organisms.
  • physical address — (memory management)   The address presented to a computer's main memory in a virtual memory system, in contrast to the virtual address which is the address generated by the CPU. A memory management unit translates virtual addresses into physical addresses.
  • physical fitness — good physical condition
  • physical science — any of the natural sciences dealing with inanimate matter or with energy, as physics, chemistry, and astronomy.
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