| heckelphone | (noun) an oboe pitched an octave below the ordinary oboe | Synonyms: basset oboe |
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| heelbone | (noun) the largest tarsal bone; forms the human heel | Synonyms: calcaneus, os tarsi fibulare |
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| herringbone | (noun) a twilled fabric with a herringbone pattern | - |
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| (noun) a pattern of columns of short parallel lines with all the lines in one column sloping one way and lines in adjacent columns sloping the other way; it is used in weaving, masonry, parquetry, embroidery | Synonyms: herringbone pattern |
| hipbone | (noun) large flaring bone forming one half of the pelvis; made up of the ilium and ischium and pubis | Synonyms: innominate bone |
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| histone | (noun) a simple protein containing mainly basic amino acids; present in cell nuclei in association with nucleic acids | - |
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| holystone | (noun) a soft sandstone used for scrubbing the decks of a ship | - |
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| (verb) scrub with a holystone | - |
| homophone | (noun) two words are homophones if they are pronounced the same way but differ in meaning or spelling or both (e.g. bare and bear) | - |
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| hone | (noun) a whetstone made of fine gritstone; used for sharpening razors | - |
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| (noun) a tool consisting of a number of fine abrasive slips held in a machine head, rotated and reciprocated to impart a smooth finish to cylinder bores, etc. | - |
| (verb) make perfect or complete | Synonyms: perfect |
| (verb) sharpen with a hone | - |
| hormone | (noun) the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect | Synonyms: endocrine, internal secretion |
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| hornstone | (noun) a fine-grained metamorphic rock formed by the action of heat on clay rocks | Synonyms: hornfels |
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| hydrocortisone | (noun) an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism | Synonyms: Cortef, cortisol, Hydrocortone |
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| hydromorphone | (noun) a narcotic analgesic (trade name Dilaudid) used to treat moderate to severe pain | Synonyms: Dilaudid, hydromorphone hydrochloride |
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| interphone | (noun) a telephonic intercommunication system linking different rooms in a building or ship etc | - |
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| intone | (verb) recite with musical intonation; recite as a chant or a psalm | Synonyms: cantillate, chant, intonate |
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| (verb) speak carefully, as with rising and falling pitch or in a particular tone | Synonyms: intonate |
| (verb) utter monotonously and repetitively and rhythmically | Synonyms: chant, tone |
| 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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| (verb) talk idly or casually and in a friendly way | Synonyms: schmoose, schmooze, shmoose, shmooze |
| 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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| lone | (adjective) being the only one; single and isolated from others | Synonyms: lonesome, only, sole, solitary |
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| (adjective) lacking companions or companionship | Synonyms: alone, lonely, solitary |
| (adjective) characterized by or preferring solitude | Synonyms: lonely, solitary |
| 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 | (adjective) of a sequence or function; consistently increasing and never decreasing or consistently decreasing and never increasing in value | Synonyms: monotonic |
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| (adjective) sounded or spoken in a tone unvarying in pitch | Synonyms: flat, monotonic, monotonous |
| (noun) an unchanging intonation | Synonyms: drone, droning |
| (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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| mosstone | (adjective) of a moderate somewhat dull yellow-green color | Synonyms: moss green |
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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 | (adjective) not any; entity, negative pronoun | - |
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| (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 | - |
| (noun) a canonical hour that is the ninth hour of the day counting from sunrise | - |
| (adverb) not at all or in no way | - |
| 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 | (adjective) used of a single unit or thing; not two or more | Synonyms: 1, ane, i |
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| (adjective) being a single entity made by combining separate components | - |
| (adjective) (informal) very; used informally as an intensifier | Synonyms: right |
| (adjective) eminent beyond or above comparison | Synonyms: matchless, nonpareil, one and only, peerless, unmatchable, unmatched, unrivaled, unrivalled |
| (adjective) indefinite in time or position | - |
| (adjective) of the same kind or quality | - |
| (adjective) having the indivisible character of a unit | Synonyms: unitary |
| (noun) a single person or thing | - |
| (noun) the smallest whole number or a numeral representing this number | Synonyms: 1, ace, I, single, unity |
| overdone | (adjective) cooked too long but still edible | - |
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| (adjective) represented as greater than is true or reasonable | Synonyms: exaggerated, overstated |
| 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 |
| (verb) get or try to get into communication (with someone) by telephone | Synonyms: call, call up, ring, telephone |
| 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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| postpone | (verb) hold back to a later time | Synonyms: defer, hold over, prorogue, put off, put over, remit, set back, shelve, table |
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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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| prone | (adjective) having a tendency (to); often used in combination | - |
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| (adjective) lying face downward | Synonyms: prostrate |
| 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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