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18-letter words containing t, a, i, l, h

  • mechanical testing — Mechanical testing is the testing of a material to find out its mechanical properties, for example its yield strength or hardness.
  • median lethal dose — the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD 5 0.
  • medical technician — a person, not a qualified doctor, who does practical work in a hospital
  • menthol cigarettes — cigarettes that are flavoured with menthol
  • methacrylate resin — an acrylic resin formed by polymerizing the esters or amides of methacrylic acid.
  • methylated spirits — ethyl alcohol denatured with methyl alcohol for the purpose of preventing its use as an alcoholic beverage.
  • middle paleolithic — See under Paleolithic.
  • middle-of-the-road — favoring, following, or characterized by an intermediate position between two extremes, especially in politics; moderate.
  • minister of health — a person appointed to head the government department of health
  • moccasin telegraph — the transmission of rumour or secret information; the grapevine
  • modular arithmetic — arithmetic in which numbers that are congruent modulo a given number are treated as the same. Compare congruence (def 2), modulo, modulus (def 2b).
  • mount saint helens — a city in Merseyside, in NW England, near Liverpool.
  • multimedia machine — machines that allow users to control and manipulate sound, video, text and graphics
  • nailed to the wall — [like a trophy] Said of a bug finally eliminated after protracted, and even heroic, effort.
  • natural childbirth — childbirth involving little or no use of drugs or anesthesia and usually involving a program in which the mother is psychologically and physically prepared for the birth process.
  • natural philosophy — natural science.
  • naval architecture — the science of designing ships and other waterborne craft.
  • nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
  • negative cash flow — the situation when income is less than payments
  • netherlands guiana — a former name of Suriname.
  • no laughing matter — sth serious
  • noninterchangeable — That cannot be interchanged with another.
  • north polar region — the region of land and water surrounding the North Pole.
  • not a hope in hell — If you say that someone has not got a hope in hell of doing something, you are emphasizing that they will not be able to do it.
  • oath of allegiance — pledge to one's nation
  • octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
  • offset lithography — offset (def 6).
  • oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
  • on the danger list — critically ill in hospital
  • ophthalmologically — In an ophthalmological manner.
  • optical brightener — an additive that dyes and brightens fabric or paper
  • oriental cockroach — a dark-brown cockroach, Blatta orientalis, thought to have originated in Asia but now nearly cosmopolitan in distribution.
  • oriental shorthair — any of a breed of domestic cat, similar to the Siamese but with greenish eyes and often a coat of a solid color
  • orthophthalic acid — Chemistry. any of three isomeric acids having the formula C 8 H 6 O 4 , especially the ortho isomer (orthophthalic acid) a colorless, crystalline, slightly water-soluble solid used chiefly in the manufacture of dyes, medicine, and perfume.
  • overnight telegram — a type of domestic telegram sent at a reduced rate with a minimum charge for 10 words or less and accepted until midnight for delivery the following day.
  • paraglyph printing — the printing of the positive and negative of a radiograph superimposed in slight misalignment to give the effect of a relief.
  • parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • pathologic anatomy — the branch of pathology dealing with the morphologic changes in tissues.
  • pennsylvania dutch — the descendants of 17th- and 18th-century settlers in Pennsylvania from southwest Germany and Switzerland.
  • phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
  • phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
  • phantom withdrawal — the unauthorized removal of funds from a bank account using an automated teller machine
  • philharmonic pitch — a standard of pitch in which A above middle C is established at 440 vibrations per second.
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • photochemical smog — air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
  • phthalic anhydride — a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
  • 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 inventory — To carry out a physical inventory is to count all the stock on hand.
  • physical therapist — sb who performs physiotherapy
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