| propanamide | (noun) the amide of propionic acid (C2H5CONH2) | Synonyms: proprionamide |
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| propane | (noun) colorless gas found in natural gas and petroleum; used as a fuel | - |
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| propanediol | (noun) a sweet colorless, viscous, hygroscopic liquid used as an antifreeze and in brake fluid and also as a humectant in cosmetics and personal care items although it can be absorbed through the skin with harmful effects | Synonyms: propylene glycol |
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| propanol | (noun) a clear colorless volatile liquid (alcohol) used as a solvent and antiseptic | Synonyms: propyl alcohol |
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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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| propellant | (noun) any substance that propels | Synonyms: propellent |
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| propellent | (noun) any substance that propels | Synonyms: propellant |
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| propeller | (noun) a mechanical device that rotates to push against air or water | Synonyms: propellor |
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| propellor | (noun) a mechanical device that rotates to push against air or water | Synonyms: propeller |
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| propenal | (noun) a pungent colorless unsaturated liquid aldehyde made from propene | Synonyms: acrolein |
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| propene | (noun) a flammable gas obtained by cracking petroleum; used in organic synthesis | Synonyms: propylene |
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| propenoate | (noun) a salt or ester of propenoic acid | Synonyms: acrylate |
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| propenonitrile | (noun) a colorless liquid unsaturated nitrile made from propene | Synonyms: acrylonitrile, vinyl cyanide |
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| propensity | (noun) a disposition to behave in a certain way | Synonyms: aptness |
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| (noun) a natural inclination | Synonyms: leaning, proclivity |
| (noun) an inclination to do something | Synonyms: leaning, tendency |
| properness | (noun) correct or appropriate behavior | Synonyms: correctitude, propriety |
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| property | (noun) any movable articles or objects used on the set of a play or movie | Synonyms: prop |
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| (noun) a basic or essential property shared by all members of a class | - |
| (noun) a construct whereby objects or individuals can be distinguished | Synonyms: attribute, dimension |
| (noun) any area set aside for a particular purpose | Synonyms: place |
| (noun) something owned; any tangible or intangible possession that is owned by someone | Synonyms: belongings, holding |
| prophase | (noun) the first stage of mitosis | - |
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| (noun) the first stage of meiosis | - |
| prophecy | (noun) knowledge of the future (usually said to be obtained from a divine source) | Synonyms: prognostication, vaticination |
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| (noun) a prediction uttered under divine inspiration | Synonyms: divination |
| prophesier | (noun) an authoritative person who divines the future | Synonyms: oracle, prophet, seer, vaticinator |
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| prophet | (noun) an authoritative person who divines the future | Synonyms: oracle, prophesier, seer, vaticinator |
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| (noun) someone who speaks by divine inspiration; someone who is an interpreter of the will of God | - |
| prophetess | (noun) a woman prophet | - |
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| prophylactic | (noun) contraceptive device consisting of a sheath of thin rubber or latex that is worn over the penis during intercourse | Synonyms: condom, rubber, safe, safety |
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| (noun) remedy that prevents or slows the course of an illness or disease | Synonyms: preventative, preventive |
| prophylaxis | (noun) the prevention of disease | - |
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| prophyll | (noun) a plant structure resembling a leaf | - |
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| propinquity | (noun) the property of being close together | Synonyms: proximity |
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| propionaldehyde | (noun) a colorless liquid aldehyde | Synonyms: propanal |
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| propitiation | (noun) the act of placating and overcoming distrust and animosity | Synonyms: conciliation, placation |
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| (noun) the act of atoning for sin or wrongdoing (especially appeasing a deity) | Synonyms: atonement, expiation |
| propitiousness | (noun) the favorable quality of strongly indicating a successful result | Synonyms: auspiciousness |
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| propjet | (noun) an airplane with an external propeller that is driven by a turbojet engine | Synonyms: turbo-propeller plane, turboprop |
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| propman | (noun) member of the stage crew in charge of properties | Synonyms: property man, property master |
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| proponent | (noun) a person who pleads for a cause or propounds an idea | Synonyms: advocate, advocator, exponent |
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| proportion | (noun) magnitude or extent | Synonyms: dimension |
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| (noun) harmonious arrangement or relation of parts or elements within a whole (as in a design) | Synonyms: balance, proportionality |
| (noun) the quotient obtained when the magnitude of a part is divided by the magnitude of the whole | - |
| (noun) the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree | Synonyms: ratio |
| (noun) balance among the parts of something | Synonyms: symmetry |
| proportional | (noun) one of the quantities in a mathematical proportion | - |
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| proportionality | (noun) harmonious arrangement or relation of parts or elements within a whole (as in a design) | Synonyms: balance, proportion |
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| (noun) a ratio of two quantities that is constant | - |
| proportionateness | (noun) the relation of corresponding in degree or size or amount | Synonyms: commensurateness, correspondence |
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| proposal | (noun) something proposed (such as a plan or assumption) | - |
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| (noun) the act of making a proposal | Synonyms: proposition |
| (noun) an offer of marriage | Synonyms: marriage offer, marriage proposal, proposal of marriage |
| proposer | (noun) (parliamentary procedure) someone who makes a formal motion | Synonyms: mover |
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| (noun) someone who advances a suggestion or proposal | Synonyms: suggester |
| proposition | (noun) a task to be dealt with | - |
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| (noun) (logic) a statement that affirms or denies something and is either true or false | - |
| (noun) a proposal offered for acceptance or rejection | Synonyms: proffer, suggestion |
| (noun) the act of making a proposal | Synonyms: proposal |
| (noun) an offer for a private bargain (especially a request for sexual favors) | - |
| propositus | (noun) the person immediately affected by or concerned with an action | - |
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| propoxyphene | (noun) a mildly narcotic analgesic drug (trade name Darvon) related to methadone but less addictive | Synonyms: Darvon, propoxyphene hydrochloride |
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| propranolol | (noun) the first beta blocker (trade name Inderal) used in treating hypertension and angina pectoris and essential tremor | Synonyms: Inderal |
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| proprietary | (noun) an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits | Synonyms: proprietorship |
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| proprietor | (noun) (law) someone who owns (is legal possessor of) a business | Synonyms: owner |
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| proprietorship | (noun) an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits | Synonyms: proprietary |
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| proprietress | (noun) a woman proprietor | - |
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| propriety | (noun) correct or appropriate behavior | Synonyms: correctitude, properness |
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| proprioception | (noun) the ability to sense the position and location and orientation and movement of the body and its parts | - |
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| proprioceptor | (noun) special nerve endings in the muscles and tendons and other organs that respond to stimuli regarding the position and movement of the body | - |
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| proprionamide | (noun) the amide of propionic acid (C2H5CONH2) | Synonyms: propanamide |
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| props | (noun) proper respect | - |
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| propulsion | (noun) the act of propelling | Synonyms: actuation |
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| (noun) a propelling force | - |
| propyl | (noun) the monovalent organic group C3H7- obtained from propane | Synonyms: propyl group, propyl radical |
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| propylene | (noun) a flammable gas obtained by cracking petroleum; used in organic synthesis | Synonyms: propene |
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| propylthiouracil | (noun) a crystalline compound used as an antithyroid drug in the treatment of goiter | - |
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| proration | (noun) the proportional limitation of production or distribution of something (e.g. crude oil or natural gas) to some fractional part of the total capacity of each producer | - |
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| prorogation | (noun) discontinuation of the meeting (of a legislative body) without dissolving it | - |
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| prosaicness | (noun) commonplaceness as a consequence of being humdrum and not exciting | Synonyms: prosiness |
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| proscenium | (noun) the wall that separates the stage from the auditorium in a modern theater | Synonyms: proscenium wall |
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| (noun) the part of a modern theater stage between the curtain and the orchestra (i.e., in front of the curtain) | Synonyms: apron, forestage |
| prosciutto | (noun) Italian salt-cured ham usually sliced paper thin | - |
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| proscription | (noun) rejection by means of an act of banishing or proscribing someone | Synonyms: banishment |
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| (noun) a decree that prohibits something | Synonyms: ban, prohibition |
| prose | (noun) ordinary writing as distinguished from verse | - |
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| (noun) matter of fact, commonplace, or dull expression | - |
| prosecution | (noun) the institution and conduct of legal proceedings against a defendant for criminal behavior | Synonyms: criminal prosecution |
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| (noun) the continuance of something begun with a view to its completion | Synonyms: pursuance |
| (noun) the lawyers acting for the state to put the case against the defendant | - |
| prosecutor | (noun) a government official who conducts criminal prosecutions on behalf of the state | Synonyms: prosecuting attorney, prosecuting officer, public prosecutor |
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| proselyte | (noun) a new convert; especially a gentile converted to Judaism | - |
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| proselytism | (noun) the state of being a proselyte; spiritual rebirth resulting from the zeal of crusading advocacy of the gospel | - |
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| (noun) the practice of proselytizing | - |
| proseminar | (noun) a course of study like a graduate seminar but often open to advanced undergraduates. | - |
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| prosencephalon | (noun) the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube | Synonyms: forebrain |
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| prosimian | (noun) primitive primates having large ears and eyes and characterized by nocturnal habits | - |
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| prosiness | (noun) commonplaceness as a consequence of being humdrum and not exciting | Synonyms: prosaicness |
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| prosociality | (noun) The quality of being beneficial to all parties and consistent with community laws and mores. | - |
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| prosodion | (noun) religious music used in a procession | Synonyms: processional |
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| prosody | (noun) the study of poetic meter and the art of versification | Synonyms: metrics |
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| (noun) the patterns of stress and intonation in a language | Synonyms: inflection |
| (noun) (prosody) a system of versification | Synonyms: poetic rhythm, rhythmic pattern |
| prosopopoeia | (noun) representing an abstract quality or idea as a person or creature | Synonyms: personification |
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| prospect | (noun) a prediction of the course of a disease | Synonyms: medical prognosis, prognosis |
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| (noun) the visual percept of a region | Synonyms: aspect, panorama, scene, view, vista |
| (noun) belief about (or mental picture of) the future | Synonyms: expectation, outlook |
| (noun) someone who is considered for something (for an office or prize or honor etc.) | Synonyms: candidate |
| (noun) the possibility of future success | Synonyms: chance |
| prospectiveness | (noun) The quality of relating to or furnishing a future prospect. | - |
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| prospector | (noun) someone who explores an area for mineral deposits | - |
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| prospectus | (noun) a catalog listing the courses offered by a college or university | Synonyms: course catalog, course catalogue |
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| (noun) a formal written offer to sell securities (filed with the SEC) that sets forth a plan for a (proposed) business enterprise | - |
| prosperity | (noun) the condition of prospering; having good fortune | Synonyms: successfulness |
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| (noun) an economic state of growth with rising profits and full employment | - |
| prospicience | (noun) seeing ahead; knowing in advance; foreseeing | Synonyms: farsightedness, foresight, prevision |
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| prostaglandin | (noun) a potent substance that acts like a hormone and is found in many bodily tissues (and especially in semen); produced in response to trauma and may affect blood pressure and metabolism and smooth muscle activity | - |
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| prostate | (noun) a firm partly muscular chestnut sized gland in males at the neck of the urethra; produces a viscid secretion that is the fluid part of semen | Synonyms: prostate gland |
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| prostatectomy | (noun) surgical removal of part or all of the prostate gland | - |
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| prostatitis | (noun) inflammation of the prostate gland characterized by perineal pain and irregular urination and (if severe) chills and fever | - |
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| prostheon | (noun) craniometric point that is the most anterior point in the midline on the alveolar process of the maxilla | Synonyms: alveolar point, prosthion |
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| prosthesis | (noun) corrective consisting of a replacement for a part of the body | Synonyms: prosthetic device |
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| prosthetics | (noun) the branch of medicine dealing with the production and use of artificial body parts | - |
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| prosthetist | (noun) an expert in prosthetics | - |
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| prosthion | (noun) craniometric point that is the most anterior point in the midline on the alveolar process of the maxilla | Synonyms: alveolar point, prostheon |
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| prosthodontia | (noun) the branch of dentistry dealing with the replacement of teeth and related mouth or jaw structures by artificial devices | Synonyms: prosthodontics |
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| prosthodontics | (noun) the branch of dentistry dealing with the replacement of teeth and related mouth or jaw structures by artificial devices | Synonyms: prosthodontia |
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| prosthodontist | (noun) a dentist who is expert in prosthodontics | - |
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| prostitute | (noun) a woman who engages in sexual intercourse for money | Synonyms: bawd, cocotte, cyprian, fancy woman, harlot, lady of pleasure, sporting lady, tart, whore, woman of the street, working girl |
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| prostitution | (noun) offering sexual intercourse for pay | Synonyms: harlotry, whoredom |
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| prostration | (noun) the act of assuming a prostrate position | - |
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| (noun) abject submission; the emotional equivalent of prostrating your body | - |
| (noun) an abrupt failure of function or complete physical exhaustion | Synonyms: collapse |
| protactinium | (noun) a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead | Synonyms: atomic number 91, Pa, protoactinium |
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| protagonism | (noun) active support of an idea or cause etc.; especially the act of pleading or arguing for something | Synonyms: advocacy |
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| protagonist | (noun) a person who backs a politician or a team etc. | Synonyms: admirer, booster, champion, friend, supporter |
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| (noun) the principal character in a work of fiction | Synonyms: agonist |
| protamine | (noun) a simple protein found in fish sperm; rich in arginine; simpler in composition than globulin or albumin; counteracts the anticoagulant effect of heparin | - |
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| protanopia | (noun) dichromacy characterized by lowered sensitivity to long wavelengths of light resulting in an inability to distinguish red and purplish blue | Synonyms: red-blindness |
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