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19-letter words containing a, m, p, l

  • palisade parenchyma — the upper layer of ground tissue in a leaf, consisting of elongated cells beneath and perpendicular to the upper epidermis and constituting the primary area of photosynthesis.
  • palomar observatory — an astronomical observatory situated on Palomar Mountain in S California, having a 200-inch (508-cm) reflecting telescope and a 48-inch (122-cm) Schmidt telescope.
  • paraphase amplifier — an amplifier that produces a push-pull output from a single input.
  • parliament building — structure housing legislative offices
  • parliamentary agent — (in Britain) a person who is employed to manage the parliamentary business of a private group
  • particle kinematics — Particle kinematics is the study of the movement of particles, without considering the forces that cause this movement.
  • party-column ballot — Indiana ballot.
  • pass someone's lips — to be eaten or drunk by someone
  • paumotu archipelago — Tuamotu Archipelago.
  • peak listening time — the time at which the highest numbers of audiences are listening to the radio
  • peninsular malaysia — part of Malaysia, on the Malay Peninsula: consists of the former Federated Malay States, the former Unfederated Malay States, and the former Straits Settlements. Capital: Kuala Lumpur. Pop: 17 144 322 (2000). Area: 131 587 sq km (50 806 sq miles)
  • peridental membrane — periodontal membrane.
  • phacoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
  • phakoemulsification — the removal of a cataract by first liquefying the affected lens with ultrasonic vibrations and then extracting it by suction.
  • phenylpropanolamine — a substance, C 9 H 1 3 NO, related to ephedrine and amphetamine, available in various popular nonprescription diet aids as an appetite suppressant.
  • phenylthiocarbamide — a crystalline, slightly water-soluble solid, C 6 H 5 NHCSNH 2 , that is either tasteless or bitter, depending upon the heredity of the taster, and is used in medical genetics and as a diagnostic.
  • philippine mahogany — any of several Philippine trees of the genus Shorea and related genera, having brown or reddish wood used as lumber and in cabinetry.
  • photopolymerization — polymerization induced by light.
  • physical impairment — A physical impairment is a condition in which a part of a person's body is damaged or is not working properly.
  • physically impaired — with reduced or weakened physical capacity
  • pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government
  • pinwheel escapement — a clock escapement in which two pallets, usually of unequal length, alternately engage and release pins set on the escape wheel perpendicular to its plane of rotation.
  • planning permission — In Britain, planning permission is official permission that you must get from the local authority before building something new or adding something to an existing building.
  • plastic deformation — In plastic deformation a material changes shape when a stress is applied to it and does not go back to its original state when the stress is removed.
  • pleased to meet you — greeting
  • pneumoencephalogram — an encephalogram made after the replacement of the cerebrospinal fluid by air or gas, rarely used since the development of the CAT scanner.
  • pointe-aux-trembles — a city in S Quebec, in E Canada, N of Montreal, on the St. Lawrence.
  • potassium bisulfate — a colorless, crystalline, water-soluble solid, KHSO 4 , used chiefly in the conversion of tartrates to bitartrates.
  • preliminary hearing — initial court session
  • prismatic telescope — a telescope having an eyepiece at the side or top equipped with a reflecting prism, used for taking sights at steep angles.
  • production platform — offshore power station
  • programmed learning — a progressively monitored, step-by-step teaching method, employing small units of information or learning material and frequent testing, whereby the student must complete or pass one stage before moving on to the next.
  • pseudo-experimental — pertaining to, derived from, or founded on experiment: an experimental science.
  • radiopharmaceutical — any of a number of radioactive drugs used diagnostically or therapeutically.
  • ralph waldo emerson — Ralph Waldo [wawl-doh,, wol-] /ˈwɔl doʊ,, ˈwɒl-/ (Show IPA), 1803–82, U.S. essayist and poet.
  • relative complement — the set of elements contained in a given set that are not elements of another specified set.
  • relative impediment — a fact or circumstance that disqualifies from lawful marriage persons who are closely related.
  • representationalism — Also called representative realism. Epistemology. the view that the objects of perception are ideas or sense data that represent external objects, especially the Lockean doctrine that the perceived idea represents exactly the primary qualities of the external object.
  • republic of vietnam — the name (from 1955–75) for South Vietnam, as an independent republic, following the division of the country in 1954 into North Vietnam and South Vietnam
  • republique malgache — French name of Malagasy Republic.
  • samuel de champlain — Samuel de [sam-yoo-uh l duh;; French sa-my-el duh] /ˈsæm yu əl də;; French sa müˈɛl də/ (Show IPA), 1567–1635, French explorer in the Americas: founder of Quebec; first colonial governor 1633–35.
  • sb's spiritual home — your spiritual home is the place where you feel that you belong, usually because your ideas or attitudes are the same as those of the people who live there
  • semipalmated plover — a New World plover, Charadrius semipalmatus, having a black ring around the chest and semipalmate feet, inhabiting beaches and salt marshes.
  • sharp-focus realism — photorealism.
  • simple carbohydrate — a carbohydrate, as glucose, that consists of a single monosaccharide unit.
  • sodium thiosulphate — a white soluble substance used, in the pentahydrate form, in photography as a fixer to dissolve unchanged silver halides and also to remove excess chlorine from chlorinated water. Formula: Na2S2O3
  • spherical astronomy — the branch of astronomy dealing with the determination of the positions of celestial bodies on the celestial sphere.
  • squamous epithelium — epithelium consisting of one or more layers of scalelike cells.
  • streaming potential — the potential produced in the walls of a porous membrane or a capillary tube by forcing a liquid through it.
  • supplementary angle — either of two angles that added together produce an angle of 180°.
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