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18-letter words containing e, l, y, s, i

  • neuropsychological — Of or pertaining to neuropsychology, the relation or combination of brain and mind.
  • non-responsibility — the state or fact of being responsible, answerable, or accountable for something within one's power, control, or management.
  • normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
  • numerical analysis — the branch of mathematics dealing with methods for obtaining approximate numerical solutions of mathematical problems.
  • nursery facilities — places where young children are looked after
  • offset lithography — offset (def 6).
  • on everyone's lips — being much discussed
  • oriental cat's-eye — a chatoyant variety of chrysoberyl, used as a gem.
  • passive vocabulary — all the words, collectively, that a person can understand
  • payload specialist — an astronaut trained to handle highly complex or classified equipment carried aboard a space shuttle and to conduct experiments in space.
  • pellitory of spain — a small Mediterranean plant, Anacyclus pyrethrum, the root of which contains an oil formerly used to relieve toothache: family Asteraceae (composites)
  • pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
  • perennial ryegrass — any of several European grasses of the genus Lolium, as L. perenne (perennial ryegrass) grown for forage in the U.S.
  • persistent cruelty — conduct causing fear of danger to the life or health of a spouse (used in matrimonial proceedings before magistrates)
  • phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
  • philosophy of life — any philosophical view or vision of the nature or purpose of life or of the way that life should be lived.
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • physical chemistry — the branch of chemistry dealing with the relations between the physical properties of substances and their chemical composition and transformations.
  • physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
  • physical geography — the branch of geography concerned with natural features and phenomena of the earth's surface, as landforms, drainage features, climates, soils, and vegetation.
  • physical inventory — To carry out a physical inventory is to count all the stock on hand.
  • physical therapist — sb who performs physiotherapy
  • play second fiddle — be considered less important
  • play silly buggers — to fool around and waste time
  • point set topology — topology (def 2).
  • polynesian tattler — a sandpiper, H. incanus, native to the Pacific coastal regions
  • population density — ratio: inhabitants to area
  • positively charged — having a positive charge
  • post-revolutionary — of, pertaining to, characterized by, or of the nature of a revolution, or a sudden, complete, or marked change: a revolutionary junta.
  • postviral syndrome — debilitating condition occurring as a sequel to viral illness
  • pre-filled syringe — A pre-filled syringe is a disposable syringe that is supplied already loaded with the substance to be injected.
  • presentation layer — (networking)   The second highest layer (layer 6) in the OSI seven layer model. Performs functions such as text compression, code or format conversion to try to smooth out differences between hosts. Allows incompatible processes in the application layer to communicate via the session layer. Documents: ITU Rec. X.226 (ISO 8823), ITU Rec. X.216 (ISO 8822).
  • psychotechnologist — a specialist in psychotechnology
  • pulmonary embolism — the blockage of a pulmonary artery, often by a blood clot, that stops the flow of blood to the lungs and which can result in death if untreated
  • quality of service — (communications, networking)   (QoS) The performance properties of a network service, possibly including throughput, transit delay, priority. Some protocols allow packets or streams to include QoS requirements.
  • quasi-metaphysical — pertaining to or of the nature of metaphysics.
  • quevedo y villegas — Francisco Gómez de. 1580–1645, Spanish poet and writer, noted for his satires and the picaresque novel La historia de la vida del Buscón (1626)
  • range of stability — the angle to the perpendicular through which a vessel may be heeled without losing the ability to right itself.
  • rear its ugly head — the upper part of the body in humans, joined to the trunk by the neck, containing the brain, eyes, ears, nose, and mouth.
  • reflection density — a measure of the extent to which a surface reflects light or other electromagnetic radiation, equal to the logarithm to base ten of the reciprocal of the reflectance
  • revolutionary wars — American Revolution.
  • rheims-douay bible — Douay Bible.
  • rosebay willowherb — a perennial onagraceous plant, Chamerion (formerly Epilobium) angustifolium, that has spikes of deep pink flowers and is widespread in open places throughout N temperate regions
  • rotary clothesline — an apparatus of radiating spokes that support lines on which clothes are hung to dry
  • rr lyrae variables — any of the very regular, short-period, pulsating variable stars having periods between 1.5 and 29 hours
  • safety regulations — regulations or rules that are put in place to ensure a product, event, etc, is safe and not dangerous
  • sampling frequency — sample rate
  • schwarz inequality — Also called Cauchy's inequality. the theorem that the inner product of two vectors is less than or equal to the product of the magnitudes of the vectors.
  • secondary diagonal — a diagonal line or plane.
  • secondary syphilis — the second stage of syphilis, characterized by eruptions of the skin and mucous membrane.
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