19-letter words containing o, p, e, l, i
- newtonian telescope — a reflecting telescope in which a mirror or reflecting prism is mounted on the axis near the eyepiece so that the image may be viewed from outside the telescope tube at right angles to the axis.
- nicolaus copernicus — Nicolaus [nik-uh-ley-uh s] /ˌnɪk əˈleɪ əs/ (Show IPA), (Mikolaj Kopernik) 1473–1543, Polish astronomer who promulgated the now accepted theory that the earth and the other planets move around the sun (the Copernican System)
- nine plus two array — the arrangement of microtubules in a flagellum or cilium, consisting of a ring of nine evenly spaced couplets surrounding two central singlets. Symbol: 9 + 2.
- nonrepresentational — not resembling or portraying any object in physical nature: a nonrepresentational painting.
- norfolk island pine — a coniferous evergreen tree, Araucaria heterophylla (or A. excelsa), having whorled branches and needlelike foliage, widely cultivated as a houseplant.
- occupational health — Occupational health is the branch of medicine that deals with the health of people in their workplace or in relation to their job.
- old english pattern — a spoon pattern having a stem curving backward at the end.
- on pins and needles — a tingly, prickly sensation in a limb that is recovering from numbness.
- open source license — (legal) Any document that attempts to specify open source usage and distribution of software. These licenses are usually drafted by experts and are likely to be more legally sound than one a programmer could write. However, loopholes do exist. Here is a non-exhaustive list of open source licenses: 1. Public Domain - No license. 2. BSD License - An early open source license 3. General Public License (GPL) - The copyleft license of the Free Software Foundation. Used for GNU software and much of Linux. 4. Artistic License Less restrictive than the GPL, permitted by Perl in addition to the GPL. 5. Mozilla Public Licenses. (MPL, MozPL) and Netscape Public License (NPL).
- operational testing — (testing) A US DoD term for testing performed by the end-user on software in its normal operating environment.
- optical double star — two stars that appear as one if not viewed through a telescope with adequate magnification, such as two stars that are separated by a great distance but are nearly in line with each other and an observer (optical double star) or those that are relatively close together and comprise a single physical system (physical double star)
- optical mark reader — (hardware) (OMR) A special scanning device that can read carefully placed pencil marks on specially designed documents. OMR is frequenty used in forms, questionnaires, and answer-sheets.
- optimising compiler — (programming, tool) compiler which attempts to analyse the code it produces and to produce more efficient code by performing program transformation such as branch elimination, partial evaluation, or peep-hole optimisation. Contrast pessimising compiler.
- oral interpretation — the study and practice of vocally expressing the meaning of written compositions, especially of literature.
- oxidation potential — (in a galvanic cell) the potential of the electrode at which oxidation occurs.
- palaeoethnobotanist — someone who studies fossil seeds and grains to further archaeological knowledge, esp of the domestication of cereals
- paleoanthropologist — the study of the origins and predecessors of the present human species, using fossils and other remains.
- paradichlorobenzene — a white, crystalline, volatile, water-insoluble solid, C 6 H 4 Cl 2 , of the benzene series, having a penetrating odor: used chiefly as a moth repellent.
- parallel processing — extending in the same direction, equidistant at all points, and never converging or diverging: parallel rows of trees.
- parallel projection — a projection from one plane to a second plane in which the lines joining points on the first plane and corresponding images are parallel.
- parthenogenetically — development of an egg without fertilization.
- particle dispersoid — A particle dispersoid is a suspension of solid particles in a gas.
- particle separation — a rule that moves the particle of a phrasal verb, thus deriving a sentence like He looked the answer up from a structure that also underlies He looked up the answer
- particle technology — Particle technology is knowledge and study which relates to particles, and is used in industry.
- pass someone's lips — to be eaten or drunk by someone
- pastoral counseling — the use of psychotherapeutic techniques by trained members of the clergy to assist parishioners who seek help for personal or emotional problems.
- paumotu archipelago — Tuamotu Archipelago.
- percussion drilling — Percussion drilling is a drilling method which involves lifting and dropping heavy tools to break rock, and uses steel casing tubes to stop the borehole from collapsing.
- perfoliate bellwort — a slender plant, Uvularia perfoliata, of the lily family, of eastern North America, having pale yellow, bell-shaped flowers.
- periodontal disease — any of various mixed bacterial infections that affect the soft tissues and bones supporting the teeth.
- peritoneal dialysis — a form of dialysis in which the peritoneum is used as an autogenous semipermeable membrane
- peroxysulfuric acid — persulfuric acid (def 1).
- perpetual adoration — uninterrupted adoration of the Blessed Sacrament.
- perpetual inventory — a form of stock control in which running records are kept of all acquisitions and disposals
- persecution complex — an acute irrational fear that other people are plotting one's downfall and that they are responsible for one's failures
- personal belongings — possessions; things that belong to someone
- personal stationery — headed notepaper
- 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.
- philosopher's stone — a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
- philosophers' stone — a substance sought by alchemists that would be capable of transmuting baser metals into gold or silver and of prolonging life.
- photoelectric meter — an exposure meter using a photocell for the measurement of light intensity.
- photopolymerization — polymerization induced by light.
- photovoltaic effect — the phenomenon in which the incidence of light or other electromagnetic radiation upon the junction of two dissimilar materials, as a metal and a semiconductor, induces the generation of an electromotive force.
- phthalocyanine blue — a pigment used in painting, derived from copper phthalocyanine and characterized chiefly by its brilliant, dark-blue color and by permanence.
- pileated woodpecker — a large, black-and-white American woodpecker, Dryocopus pileatus, having a prominent red crest.
- pilgrimage of grace — a rebellion in 1536 in N England against the Reformation and Henry VIII's government