| interphone | (noun) a telephonic intercommunication system linking different rooms in a building or ship etc | - |
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| isanemone | (noun) an isogram connecting points having equal wind speed. | - |
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| isochrone | (noun) an isogram connecting points at which something occurs or arrives at the same time | - |
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| isogone | (noun) an imaginary line connecting points on the Earth's surface where the magnetic declination is the same | Synonyms: isogonal line, isogonic line |
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| isophone | (noun) linguistics, an isogloss marking off an area in which a particular feature of pronunciation is found. | - |
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| jadestone | (noun) a semiprecious gemstone that takes a high polish; is usually green but sometimes whitish; consists of jadeite or nephrite | Synonyms: jade |
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| jawbone | (noun) the jaw in vertebrates that is hinged to open the mouth | Synonyms: jowl, lower jaw, lower jawbone, mandible, mandibula, mandibular bone, submaxilla |
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| kerbstone | (noun) a paving stone forming part of a curb | Synonyms: curbstone |
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| ketone | (noun) any of a class of organic compounds having a carbonyl group linked to a carbon atom in each of two hydrocarbon radicals | - |
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| keystone | (noun) the central building block at the top of an arch or vault | Synonyms: headstone, key |
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| (noun) a central cohesive source of support and stability | Synonyms: anchor, backbone, linchpin, lynchpin, mainstay |
| krone | (noun) the basic unit of money in Denmark | Synonyms: Danish krone |
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| (noun) the basic unit of money in Norway | Synonyms: Norwegian krone |
| lactone | (noun) a cyclic intramolecular ester derived from a hydroxy acid. | - |
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| lagerphone | (noun) an Australian percussion instrument used for playing bush music; a long stick with bottle caps nailed loosely to it; played by hitting it with a stick or banging it on the ground | - |
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| leone | (noun) the basic unit of money in Sierra Leone; equal to 100 cents | - |
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| limestone | (noun) a sedimentary rock consisting mainly of calcium that was deposited by the remains of marine animals | - |
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| loadstone | (noun) a permanent magnet consisting of magnetite that possess polarity and has the power to attract as well as to be attracted magnetically | Synonyms: lodestone |
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| lodestone | (noun) a permanent magnet consisting of magnetite that possess polarity and has the power to attract as well as to be attracted magnetically | Synonyms: loadstone |
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| marlstone | (noun) metamorphic rock with approximately the same composition as marl | Synonyms: marlite |
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| marrowbone | (noun) a bone containing edible marrow; used especially in flavoring soup | - |
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| mascarpone | (noun) soft mild Italian cream cheese | - |
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| mearstone | (noun) an old term for a landmark that consisted of a pile of stones surmounted by an upright slab | Synonyms: meerestone, merestone |
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| medroxyprogesterone | (noun) a progestin compound (trade name Provera) used to treat menstrual disorders | Synonyms: Provera |
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| meerestone | (noun) an old term for a landmark that consisted of a pile of stones surmounted by an upright slab | Synonyms: mearstone, merestone |
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| megaphone | (noun) a cone-shaped acoustic device held to the mouth to intensify and direct the human voice | - |
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| membranophone | (noun) a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end | Synonyms: drum, tympan |
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| menadione | (noun) a synthetic chemical compound that is a form of vitamin K, it is an analog of 1,4-naphthoquinone with a methyl group in the 2-position | Synonyms: vitamin K3 |
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| merestone | (noun) an old term for a landmark that consisted of a pile of stones surmounted by an upright slab | Synonyms: mearstone, meerestone |
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| methadone | (noun) synthetic narcotic drug similar to morphine but less habit-forming; used in narcotic detoxification and maintenance of heroin addiction | Synonyms: dolophine hydrochloride, fixer, methadon, methadone hydrochloride, synthetic heroin |
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| methaqualone | (noun) sedative-hypnotic drug (trade name Quaalude) that is a drug of abuse | Synonyms: Quaalude |
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| methyltestosterone | (noun) an androgenic compound contained in drugs that are used to treat testosterone deficiency and female breast cancer and to stimulate growth and weight gain | - |
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| microphone | (noun) device for converting sound waves into electrical energy | Synonyms: mic, mike |
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| mifepristone | (noun) an abortion-inducing drug (trade name RU 486) developed in France; when taken during the first five weeks of pregnancy it blocks the action of progesterone so that the uterus sloughs off the embryo | Synonyms: abortion pill, RU 486 |
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| milestone | (noun) stone post at side of a road to show distances | Synonyms: milepost |
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| (noun) a significant event in your life (or in a project) | - |
| millstone | (noun) one of a pair of heavy flat disk-shaped stones that are rotated against one another to grind the grain | - |
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| (noun) any load that is difficult to carry | - |
| (noun) (figurative) something that hinders or handicaps | Synonyms: albatross |
| minestrone | (noun) soup made with a variety of vegetables | Synonyms: petite marmite, vegetable soup |
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| molindone | (noun) antipsychotic drug (trade name Moban) used in the treatment of schizophrenia | Synonyms: Moban |
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| monotone | (noun) an unchanging intonation | Synonyms: drone, droning |
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| (noun) a single tone repeated with different words or different rhythms (especially in rendering liturgical texts) | - |
| moonstone | (noun) a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar | - |
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| nabumetone | (noun) a nonsteroidal anti-inflammatory drug (trade name Relafen) | Synonyms: Relafen |
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| naloxone | (noun) a potent narcotic antagonist (trade name Narcan) especially effective with morphine | Synonyms: Narcan |
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| naltrexone | (noun) an oral antagonist against the action of opiates | - |
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| nandrolone | (noun) an androgen (trade names Durabolin or Kabolin) that is used to treat testosterone deficiency or breast cancer or osteoporosis | Synonyms: Durabolin, Kabolin |
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| naphthoquinone | (noun) a fat-soluble vitamin that helps in the clotting of blood | Synonyms: antihemorrhagic factor, vitamin K |
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| nefazodone | (noun) an antidepressant drug (trade name Serzone) | Synonyms: Serzone |
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| neurohormone | (noun) a hormone that is released by nerve impulses (e.g., norepinephrine or vasopressin) | - |
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| none | (noun) a service in the Roman Catholic Church formerly read or chanted at 3 PM (the ninth hour counting from sunrise) but now somewhat earlier | - |
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| (noun) a canonical hour that is the ninth hour of the day counting from sunrise | - |
| norethandrolone | (noun) a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis | Synonyms: norethindrone, norethindrone acetate, Norlutin |
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| norethindrone | (noun) a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis | Synonyms: norethandrolone, norethindrone acetate, Norlutin |
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| oestrone | (noun) a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency | Synonyms: estrone, Estronol, theelin |
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| oilstone | (noun) a whetstone for use with oil | - |
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| one | (noun) a single person or thing | - |
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| (noun) the smallest whole number or a numeral representing this number | Synonyms: 1, ace, I, single, unity |
| overtone | (noun) a harmonic with a frequency that is a multiple of the fundamental frequency | Synonyms: partial, partial tone |
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| (noun) (usually plural) an ulterior implicit meaning or quality | - |
| oxyphenbutazone | (noun) an anti-inflammatory drug (trade name Tandearil) used to treat arthritis and bursitis | Synonyms: Tandearil |
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| oxytone | (noun) word having stress or an acute accent on the last syllable | - |
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| ozone | (noun) a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation) | - |
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| padrone | (noun) an owner or proprietor of an inn in Italy | - |
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| (noun) an employer who exploits Italian immigrants in the U.S. | - |
| pallone | (noun) an Italian game similar to tennis | - |
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| parathormone | (noun) hormone synthesized and released into the blood stream by the parathyroid glands; regulates phosphorus and calcium in the body and functions in neuromuscular excitation and blood clotting | Synonyms: parathyroid hormone |
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| paroxytone | (noun) word having stress or acute accent on the next to last syllable | - |
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| pentatone | (noun) a gapped scale with five notes; usually the fourth and seventh notes of the diatonic scale are omitted | Synonyms: pentatonic scale |
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| peptone | (noun) any of various water-soluble compounds that form by hydrolysis in the digestion of proteins to amino acids | - |
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| perigone | (noun) collective term for the outer parts of a flower consisting of the calyx and corolla and enclosing the stamens and pistils | Synonyms: chlamys, floral envelope, perianth, perigonium |
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| phenobarbitone | (noun) a long-acting barbiturate used as a sedative | Synonyms: Luminal, phenobarbital, purple heart, sodium thiopental |
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| phenylbutazone | (noun) anti-inflammatory drug (trade name Butazolidin) | Synonyms: Butazolidin |
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| pheromone | (noun) a chemical substance secreted externally by some animals (especially insects) that influences the physiology or behavior of other animals of the same species | - |
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| phone | (noun) electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds | Synonyms: telephone, telephone set |
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| (noun) electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear | Synonyms: earphone, earpiece, headphone |
| (noun) (phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language | Synonyms: sound, speech sound |
| phragmacone | (noun) the thin conical chambered internal shell (either straight or curved) of a belemnite | Synonyms: phragmocone |
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| phragmocone | (noun) the thin conical chambered internal shell (either straight or curved) of a belemnite | Synonyms: phragmacone |
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| phylloquinone | (noun) a form of vitamin K, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituent | Synonyms: phytonadione, vitamin K1 |
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| phytohormone | (noun) (botany) a plant product that acts like a hormone | Synonyms: growth regulator, plant hormone |
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| phytonadione | (noun) a form of vitamin K, based on 2-methyl-1,4-naphthoquinone, with a 3-phytyl substituent | Synonyms: phylloquinone, vitamin K1 |
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| pinecone | (noun) the seed-producing cone of a pine tree | - |
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| pistonphone | (noun) an acoustical calibrator (sound source) that uses a closed coupling volume to generate a precise sound pressure for the calibration of measurement microphones. | - |
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| pitchstone | (noun) dark acid granitic glass | - |
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| polyphone | (noun) a letter that has two or more pronunciations | Synonyms: polyphonic letter |
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| pone | (noun) cornbread often made without milk or eggs and baked or fried (southern) | Synonyms: cornpone |
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| prednisolone | (noun) a glucocorticoid (trade names Pediapred or Prelone) used to treat inflammatory conditions | Synonyms: Pediapred, Prelone |
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| prednisone | (noun) a dehydrogenated analogue of cortisol (trade names Orasone or Deltasone or Liquid Pred or Meticorten); used as an anti-inflammatory drug in the treatment of arthritis and as an immunosuppressant | Synonyms: Deltasone, Liquid Pred, Meticorten, Orasone |
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| primidone | (noun) an anticonvulsant (trade name Mysoline) used to treat grand mal seizures and essential tremor | Synonyms: Mysoline |
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| progesterone | (noun) a steroid hormone (trade name Lipo-Lutin) produced in the ovary; prepares and maintains the uterus for pregnancy | Synonyms: Lipo-Lutin |
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| propanone | (noun) the simplest ketone; a highly flammable liquid widely used as an organic solvent and as material for making plastics | Synonyms: acetone, dimethyl ketone |
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| proparoxytone | (noun) word having stress or acute accent on the antepenult | - |
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| quinone | (noun) any of a class of aromatic yellow compounds including several that are biologically important as coenzymes or acceptors or vitamins; used in making dyes | Synonyms: benzoquinone |
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| radiophone | (noun) a telephone that communicates by radio waves rather than along cables | Synonyms: radiotelephone, wireless telephone |
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| radiotelephone | (noun) a telephone that communicates by radio waves rather than along cables | Synonyms: radiophone, wireless telephone |
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| (noun) telephony that uses transmission by radio rather than by wire | Synonyms: radiotelephony, wireless telephone |
| redbone | (noun) a speedy red or red-and-tan American hound | - |
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| rhinestone | (noun) an imitation diamond made from rock crystal or glass or paste | - |
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| rotenone | (noun) a white crystalline insecticide that has low toxicity for mammals; is used in home gardens; extracted from the roots of derris and cube | - |
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| rottenstone | (noun) a weathered and decomposed siliceous limestone; in powdered form it is used in polishing | Synonyms: tripoli |
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| sandstone | (noun) a sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.) | - |
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| saxophone | (noun) a single-reed woodwind with a conical bore | Synonyms: sax |
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| scone | (noun) small biscuit (rich with cream and eggs) cut into diamonds or sticks and baked in an oven or (especially originally) on a griddle | - |
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| semitone | (noun) the musical interval between adjacent keys on a keyboard instrument | Synonyms: half step |
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| shinbone | (noun) the inner and thicker of the two bones of the human leg between the knee and ankle | Synonyms: shin, shin bone, tibia |
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| silicone | (noun) any of a large class of siloxanes that are unusually stable over a wide range of temperatures; used in lubricants and adhesives and coatings and synthetic rubber and electrical insulation | Synonyms: silicone polymer |
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| siltstone | (noun) a fine-grained sandstone of consolidated silt | - |
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| smartphone | (noun) a mobile phone with more advanced computing capability and connectivity than basic feature phones | Synonyms: smart phone |
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| soapstone | (noun) a soft heavy compact variety of talc having a soapy feel; used to make hearths and tabletops and ornaments | Synonyms: soap-rock, soaprock, steatite |
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| someone | (noun) a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential | Synonyms: individual, mortal, person, somebody, soul |
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| sone | (noun) a unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above threshold | - |
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