| perchlorate | (noun) a salt of perchloric acid | - |
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| perforate | (adjective) having a hole cut through | Synonyms: perforated, pierced, punctured |
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| (verb) make a hole into or between, as for ease of separation | Synonyms: punch |
| (verb) pass into or through, often by overcoming resistance | Synonyms: penetrate |
| perforated | (adjective) having a number or series of holes | - |
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| (adjective) having a hole cut through | Synonyms: perforate, pierced, punctured |
| perforation | (noun) the act of punching a hole (especially a row of holes as for ease of separation) | - |
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| (noun) a line of small holes for tearing at a particular place | - |
| (noun) a hole made in something | - |
| perorate | (verb) deliver an oration in grandiloquent style | - |
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| (verb) conclude a speech with a formal recapitulation | - |
| peroration | (noun) (rhetoric) the concluding section of an oration | - |
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| (noun) a flowery and highly rhetorical oration | - |
| pervaporate | (verb) cause (a liquid) to evaporate through a semipermeable membrane | - |
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| (verb) evaporate through a semipermeable membrane | - |
| pervaporation | (noun) the concentration of a colloidal solution whose colloid will not pass through a semipermeable membrane; solution is placed in a bag of the membrane and the solvent is evaporated off | - |
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| plethora | (noun) extreme excess | Synonyms: embarrassment, overplus, superfluity |
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| pneumothorax | (noun) abnormal presence of air in the pleural cavity resulting in the collapse of the lung; may be spontaneous (due to injury to the chest) or induced (as a treatment for tuberculosis) | - |
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| pogonophoran | (noun) slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom | Synonyms: beard worm |
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| postdoctoral | (adjective) of or relating to study or research that is done after work for the doctoral degree has been completed | - |
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| (noun) a grant that funds postdoctoral study or research | Synonyms: post doc, postdoc |
| prorate | (verb) divide or assess proportionally | - |
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| (verb) make a proportional settlement or distribution | - |
| 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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| protectorate | (noun) a state or territory partly controlled by (but not a possession of) a stronger state but autonomous in internal affairs; protectorates are established by treaty | Synonyms: associated state |
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| prothorax | (noun) the anterior part of an insect's thorax; bears the first pair of legs | - |
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| rariora | (noun) (plural) rare collector's items | - |
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| rectorate | (noun) the office or station of a rector | Synonyms: rectorship |
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| redecorate | (verb) redo the decoration of an apartment or house | - |
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| reinvigorate | (verb) impart vigor, strength, or vitality to | Synonyms: invigorate |
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| reinvigorated | (adjective) with restored energy | Synonyms: fresh, invigorated, refreshed |
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| remora | (noun) marine fishes with a flattened elongated body and a sucking disk on the head for attaching to large fish or moving objects | Synonyms: suckerfish, sucking fish |
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| restoration | (noun) the act of restoring something or someone to a satisfactory state | - |
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| (noun) getting something back again | Synonyms: regaining, restitution, return |
| (noun) some artifact that has been restored or reconstructed | - |
| (noun) a model that represents the landscape of a former geological age or that represents and extinct animal etc. | - |
| (noun) the state of being restored to its former good condition | Synonyms: refurbishment, renovation |
| restorative | (adjective) promoting recuperation | Synonyms: recuperative |
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| (adjective) tending to impart new life and vigor to | Synonyms: renewing, revitalising, revitalizing, reviving |
| (noun) a device for treating injury or disease | Synonyms: corrective |
| (noun) a medicine that strengthens and invigorates | Synonyms: tonic |
| seigniorage | (noun) charged by a government for coining bullion | - |
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| signora | (noun) an Italian title of address equivalent to Mrs. when used before a name | - |
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| sororal | (adjective) like or characteristic of or befitting a sister | Synonyms: sisterlike, sisterly |
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| spaciotemporal | (adjective) existing in both space and time; having both spatial extension and temporal duration | Synonyms: spatiotemporal |
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| spatiotemporal | (adjective) of or relating to space and time together (having both spatial extension and temporal duration) | - |
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| (adjective) existing in both space and time; having both spatial extension and temporal duration | Synonyms: spaciotemporal |
| sporadic | (adjective) recurring in scattered and irregular or unpredictable instances | - |
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| sporadically | (adverb) in a sporadic manner | Synonyms: periodically |
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| sporadicalness | (noun) The quality of being rare and scattered in occurrence. | - |
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| sporangiophore | (noun) stalk bearing one or more sporangia | - |
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| sporangium | (noun) organ containing or producing spores | Synonyms: spore case, spore sac |
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| storage | (noun) the commercial enterprise of storing goods and materials | - |
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| (noun) the act of storing something | - |
| (noun) depositing in a warehouse | Synonyms: repositing, reposition, warehousing |
| (noun) a depository for goods | Synonyms: depot, entrepot, store, storehouse |
| (noun) an electronic memory device | Synonyms: computer memory, computer storage, memory, memory board, store |
| (noun) (computer science) the process of storing information in a computer memory or on a magnetic tape or disk | - |
| storax | (noun) a vanilla-scented resin from various trees of the genus Styrax | - |
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| sublittoral | (adjective) of or relating to the region of the continental shelf (between the seashore and the edge of the continental shelf) or the marine organisms situated there | - |
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| temporal | (adjective) characteristic of or devoted to the temporal world as opposed to the spiritual world | Synonyms: secular, worldly |
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| (adjective) of or relating to the temples (the sides of the skull behind the orbit) | - |
| (adjective) of or relating to or limited by time | - |
| (adjective) of this earth or world | - |
| (adjective) not eternal | - |
| (noun) the semantic role of the noun phrase that designates the time of the state or action denoted by the verb | Synonyms: temporal role |
| temporalis | (noun) muscle extending from the temporal fossa to the coronoid process of the mandible; acts to raise the mandible and close the jaws | Synonyms: musculus temporalis, temporal muscle, temporalis muscle |
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| temporality | (noun) the worldly possessions of a church | Synonyms: temporalty |
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| temporalization | (noun) The act or process of placing or defining in time relations. | - |
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| temporally | (adverb) with regard to temporal order | - |
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| temporalty | (noun) in Christianity, members of a religious community that do not have the priestly responsibilities of ordained clergy | Synonyms: laity |
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| (noun) the worldly possessions of a church | Synonyms: temporality |
| temporarily | (adverb) for a limited time only; not permanently | - |
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| temporariness | (noun) the property of lasting only a short time | - |
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| temporary | (adjective) not permanent; not lasting | Synonyms: impermanent |
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| (adjective) lacking continuity or regularity | Synonyms: irregular |
| (noun) a worker (especially in an office) hired on a temporary basis | Synonyms: temp, temporary worker |
| tetrasporangium | (noun) a sporangium containing four asexual spores | - |
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| thoracentesis | (noun) removal of fluid from the chest by centesis for diagnostic or therapeutic purposes | Synonyms: thoracocentesis |
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| thoracic | (adjective) of or relating to the chest or thorax | Synonyms: pectoral |
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| thoracocentesis | (noun) removal of fluid from the chest by centesis for diagnostic or therapeutic purposes | Synonyms: thoracentesis |
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| thoracotomy | (noun) surgical incision into the chest walls opening up the pleural cavity | - |
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| thorax | (noun) part of an insect's body that bears the wings and legs | - |
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| (noun) the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates | Synonyms: chest, pectus |
| (noun) the middle region of the body of an arthropod between the head and the abdomen | - |
| thyreophoran | (noun) armored dinosaurs: stegosaurs and ankylosaurs | Synonyms: suborder Thyreophora, Thyreophora |
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| uncamphorated | (adjective) not containing camphor | - |
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| uncorroborated | (adjective) unsupported by other evidence | Synonyms: unsubstantiated |
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| undecorated | (adjective) not decorated with something to increase its beauty or distinction | Synonyms: unadorned |
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| unelaborate | (adjective) not elaborate; lacking rich or complex detail | Synonyms: inelaborate |
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| unelaborated | (adjective) giving only major points; lacking completeness | Synonyms: sketchy |
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| unexplorative | (adjective) not exploratory | Synonyms: nonexplorative, nonexploratory, unexploratory |
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| unexploratory | (adjective) not exploratory | Synonyms: nonexplorative, nonexploratory, unexplorative |
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| unfavorable | (adjective) (of winds or weather) tending to hinder or oppose | Synonyms: unfavourable |
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| (adjective) not encouraging or approving or pleasing | Synonyms: unfavourable |
| (adjective) involving or creating circumstances detrimental to success or effectiveness | Synonyms: disadvantageous, unfavourable |
| unfavorableness | (noun) the quality of not being encouraging or indicative of success | Synonyms: unfavourableness |
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| unfavorably | (adverb) showing disapproval; in a disparaging way | Synonyms: unfavourably |
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| unincorporated | (adjective) not organized and maintained as a legal corporation | - |
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| unmemorable | (adjective) not worth remembering | - |
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| unmemorably | (adverb) in an unmemorable manner | - |
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| voracious | (adjective) excessively greedy and grasping | Synonyms: rapacious, ravening |
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| (adjective) devouring or craving food in great quantities | Synonyms: edacious, esurient, rapacious, ravening, ravenous, wolfish |
| voraciously | (adverb) in an eagerly voracious manner | - |
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| voraciousness | (noun) extreme gluttony | Synonyms: edacity, esurience, rapaciousness, rapacity, voracity |
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| (noun) an excessive desire for wealth (usually in large amounts) | Synonyms: greediness, rapaciousness |
| (noun) excessive desire to eat | Synonyms: edacity, esurience, ravenousness, voracity |
| voracity | (noun) extreme gluttony | Synonyms: edacity, esurience, rapaciousness, rapacity, voraciousness |
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| (noun) excessive desire to eat | Synonyms: edacity, esurience, ravenousness, voraciousness |
| xeroradiography | (noun) radiography using X-rays and xerographic (rather than roentgenographic) techniques | - |
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| zamboorak | (noun) a camel cavalry used in the early modern era by Arab, Afghan, Persian, and Indian armies | Synonyms: camel cavalry, zamburak, zamburek, zumbooruck, zumbooruk |
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