| muramidase | (noun) an enzyme found in saliva and sweat and tears that destroys the cell walls of certain bacteria | Synonyms: lysozyme |
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| nitrogenase | (noun) an enzyme of nitrogen-fixing microorganisms that catalyzes the conversion of nitrogen to ammonia | - |
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| notecase | (noun) a pocket-size case for holding papers and paper money | Synonyms: billfold, pocketbook, wallet |
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| nuclease | (noun) general term for enzymes that catalyze the hydrolysis of nucleic acid by cleaving chains of nucleotides into smaller units | - |
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| nutcase | (noun) someone deranged and possibly dangerous | Synonyms: crazy, looney, loony, weirdo |
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| oligoclase | (noun) any of a series of triclinic feldspars that form rocks | Synonyms: plagioclase |
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| orthoclase | (noun) a white or colored monoclinic feldspar | - |
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| oxidase | (noun) any of the enzymes that catalyze biological oxidation | - |
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| oxidoreductase | (noun) an enzyme that catalyzes oxidation-reduction | - |
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| oxygenase | (noun) an oxidoreductase that catalyzes the incorporation of molecular oxygen | - |
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| paraphrase | (noun) rewording for the purpose of clarification | Synonyms: paraphrasis |
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| paseo | (noun) a path set aside for walking | Synonyms: walk, walkway |
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| peasecod | (noun) husk of a pea; edible in some garden peas | Synonyms: pea pod |
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| penicillinase | (noun) enzyme produced by certain bacteria that inactivates penicillin and results in resistance to that antibiotic | Synonyms: beta-lactamase |
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| peptidase | (noun) any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis | Synonyms: protease, proteinase, proteolytic enzyme |
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| periclase | (noun) a white solid mineral that occurs naturally as periclase; a source of magnesium | Synonyms: magnesia, magnesium oxide |
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| peroxidase | (noun) any of a group of enzymes (occurring especially in plant cells) that catalyze the oxidation of a compound by a peroxide | - |
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| phase | (noun) (astronomy) the particular appearance of a body's state of illumination (especially one of the recurring shapes of the part of Earth's moon that is illuminated by the sun) | - |
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| (noun) (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary | Synonyms: form |
| (noun) any distinct time period in a sequence of events | Synonyms: stage |
| (noun) a particular point in the time of a cycle; measured from some arbitrary zero and expressed as an angle | Synonyms: phase angle |
| phosphatase | (noun) any of a group of enzymes that act as a catalyst in the hydrolysis of organic phosphates | - |
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| phrase | (noun) dance movements that are linked in a single choreographic sequence | - |
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| (noun) an expression consisting of one or more words forming a grammatical constituent of a sentence | - |
| (noun) a short musical passage | Synonyms: musical phrase |
| (noun) an expression whose meanings cannot be inferred from the meanings of the words that make it up | Synonyms: idiom, idiomatic expression, phrasal idiom, set phrase |
| phraseology | (noun) the manner in which something is expressed in words | Synonyms: choice of words, diction, phrasing, verbiage, wording |
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| pillowcase | (noun) bed linen consisting of a cover for a pillow | Synonyms: case, pillow slip, slip |
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| plagioclase | (noun) any of a series of triclinic feldspars that form rocks | Synonyms: oligoclase |
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| pleaser | (noun) a pleasing entertainer | - |
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| polymerase | (noun) an enzyme that catalyzes the formation of new DNA and RNA from an existing strand of DNA or RNA | - |
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| praseodymium | (noun) a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process | Synonyms: atomic number 59, Pr |
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| prickteaser | (noun) a seductive woman who uses her sex appeal to exploit men | Synonyms: coquette, flirt, minx, tease, vamp, vamper |
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| prophase | (noun) the first stage of mitosis | - |
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| (noun) the first stage of meiosis | - |
| protease | (noun) any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis | Synonyms: peptidase, proteinase, proteolytic enzyme |
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| proteinase | (noun) any enzyme that catalyzes the splitting of proteins into smaller peptide fractions and amino acids by a process known as proteolysis | Synonyms: peptidase, protease, proteolytic enzyme |
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| prothrombinase | (noun) coagulation factor that is converted to an enzyme that converts prothrombin to thrombin in a reaction that depends on calcium ions and other coagulation factors | Synonyms: factor X |
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| purchase | (noun) the acquisition of something for payment | - |
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| (noun) the mechanical advantage gained by being in a position to use a lever | Synonyms: leverage |
| (noun) a means of exerting influence or gaining advantage | - |
| (noun) something acquired by purchase | - |
| purchaser | (noun) a person who buys | Synonyms: buyer, emptor, vendee |
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| pyocyanase | (noun) a yellow-green mixture of antibiotics obtained from the bacillus of green pus | - |
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| reductase | (noun) an enzyme that catalyses the biochemical reduction of some specified substance | - |
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| release | (noun) activity that frees or expresses creative energy or emotion | Synonyms: outlet, vent |
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| (noun) the act of liberating someone or something | Synonyms: freeing, liberation |
| (noun) the termination of someone's employment (leaving them free to depart) | Synonyms: discharge, dismissal, dismission, firing, liberation, sack, sacking |
| (noun) the act of allowing a fluid to escape | Synonyms: spill, spillage |
| (noun) a formal written statement of relinquishment | Synonyms: discharge, waiver |
| (noun) (music) the act or manner of terminating a musical phrase or tone | Synonyms: tone ending |
| (noun) merchandise issued for sale or public showing (especially a record or film) | - |
| (noun) a device that when pressed will release part of a mechanism | Synonyms: button |
| (noun) an announcement distributed to members of the press in order to supplement or replace an oral presentation | Synonyms: handout, press release |
| (noun) a legal document evidencing the discharge of a debt or obligation | Synonyms: acquittance |
| (noun) euphemistic expressions for death | Synonyms: departure, exit, expiration, going, loss, passing |
| (noun) a process that liberates or discharges something | - |
| repurchase | (noun) the act of purchasing back something previously sold | Synonyms: buyback, redemption |
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| ribonuclease | (noun) a transferase that catalyzes the hydrolysis of ribonucleic acid | Synonyms: ribonucleinase, RNase |
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| ribonucleinase | (noun) a transferase that catalyzes the hydrolysis of ribonucleic acid | Synonyms: ribonuclease, RNase |
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| saccharase | (noun) an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose | Synonyms: invertase, sucrase |
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| scramaseax | (noun) A single-edged knife or sword used by the Anglo-Saxons for fighting and hunting. | Synonyms: scramasax, scramsax |
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| secretase | (noun) a set of enzymes believed to snip pieces off a longer protein producing fragments of amyloid protein that bunch up and create amyloid protein plaques in brain tissue (the pathological hallmark of Alzheimer's) | - |
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| seedcase | (noun) the vessel that contains the seeds of a plant (not the seeds themselves) | Synonyms: cod, pod |
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| showcase | (noun) a glass container used to store and display items in a shop or museum or home | Synonyms: case, display case, vitrine |
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| (noun) a setting in which something can be displayed to best effect | Synonyms: show window |
| staircase | (noun) a way of access (upward and downward) consisting of a set of steps | Synonyms: stairway |
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| steeplechase | (noun) a horse race over an obstructed course | - |
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| (noun) a footrace of usually 3000 meters over a closed track with hurdles and a water jump | - |
| steeplechaser | (noun) a horse trained to run in steeplechases | - |
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| streptodornase | (noun) an enzyme produced by some hemolytic strains of streptococcus that dissolves fibrinous secretions from infections; used medicinally (often in combination with streptokinase) | - |
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| streptokinase | (noun) an enzyme produced by some strains of streptococcus that can liquefy blood clots by converting plasminogen to plasmin; used medicinally in some cases of myocardial infarction and pulmonary embolism | - |
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| striptease | (noun) a form of erotic entertainment in which a dancer gradually undresses to music | Synonyms: strip, strip show |
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| (noun) a performer who provides erotic entertainment by undressing to music | Synonyms: ecdysiast, exotic dancer, peeler, stripper, striptease artist, stripteaser |
| stripteaser | (noun) a performer who provides erotic entertainment by undressing to music | Synonyms: ecdysiast, exotic dancer, peeler, stripper, striptease, striptease artist |
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| subbase | (noun) the lowest molding of an architectural base or of a baseboard | - |
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| sublease | (noun) a lease from one lessee to another | Synonyms: sublet |
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| sucrase | (noun) an enzyme that catalyzes the hydrolysis of sucrose into glucose and fructose | Synonyms: invertase, saccharase |
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| suitcase | (noun) a portable rectangular container for carrying clothes | Synonyms: bag, grip, traveling bag, travelling bag |
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| surbase | (noun) the molding or border above the base of a structure (a pedestal or podium or wall) | - |
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| surcease | (noun) a stopping | Synonyms: cessation |
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| tease | (noun) the act of harassing someone playfully or maliciously (especially by ridicule); provoking someone with persistent annoyances | Synonyms: ribbing, tantalization, teasing |
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| (noun) someone given to teasing (as by mocking or stirring curiosity) | Synonyms: annoyer, teaser, vexer |
| (noun) a seductive woman who uses her sex appeal to exploit men | Synonyms: coquette, flirt, minx, prickteaser, vamp, vamper |
| teasel | (noun) any of several herbs of the genus Dipsacus native to the Old World having flower heads surrounded by spiny bracts | Synonyms: teasle, teazel |
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| teaser | (noun) a flat at each side of the stage to prevent the audience from seeing into the wings | Synonyms: tormenter, tormentor |
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| (noun) a device for teasing wool | - |
| (noun) a particularly baffling problem that is said to have a correct solution | Synonyms: mystifier, puzzle, puzzler |
| (noun) an advertisement that offers something free in order to arouse customers' interest | - |
| (noun) an attention-getting opening presented at the start of a television show | - |
| (noun) someone given to teasing (as by mocking or stirring curiosity) | Synonyms: annoyer, tease, vexer |
| (noun) a worker who teases wool | - |
| telomerase | (noun) an enzyme in eukaryotic cells that can add telomeres to the ends of chromosomes after they divide | - |
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| telophase | (noun) the final stage of mitosis | - |
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| (noun) the final stage of meiosis when the chromosomes move toward opposite ends of the nuclear spindle | - |
| thrombokinase | (noun) an enzyme liberated from blood platelets that converts prothrombin into thrombin as blood starts to clot | Synonyms: factor III, thromboplastin |
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| transaminase | (noun) a class of transferases that catalyze transamination (that transfer an amino group from an amino acid to another compound) | Synonyms: aminopherase, aminotransferase |
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| transcriptase | (noun) the enzyme that copies DNA into RNA | Synonyms: RNA polymerase |
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| transferase | (noun) any of various enzymes that move a chemical group from one compound to another compound | - |
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| ukase | (noun) an edict of the Russian tsar | - |
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| unease | (noun) the trait of seeming ill at ease | Synonyms: disquiet, uneasiness |
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| (noun) physical discomfort (as mild sickness or depression) | Synonyms: malaise, uneasiness |
| uppercase | (noun) one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis | Synonyms: capital, capital letter, majuscule, upper-case letter |
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| urease | (noun) an enzyme that catalyzes the hydrolysis of urea into carbon dioxide and ammonia; is present in intestinal bacteria | - |
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| urokinase | (noun) protease produced in the kidney that converts plasminogen to plasmin and so initiates fibrinolysis | Synonyms: plasminogen activator |
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| vase | (noun) an open jar of glass or porcelain used as an ornament or to hold flowers | - |
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| vasectomy | (noun) surgical procedure that removes all or part of the vas deferens (usually as a means of sterilization); is sometimes reversible | - |
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| weasel | (noun) small carnivorous mammal with short legs and elongated body and neck | - |
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| (noun) a person who is regarded as treacherous or sneaky | - |
| wheelbase | (noun) the distance from the center of a car's front wheel to the rear axle | - |
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| zymase | (noun) a complex of enzymes that cause glycolysis; originally found in yeast but also present in higher organisms | - |
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