| EPHEMEROPTERAN | • ephemeropteran n. (Zoology) Any insect of the order Ephemeroptera, the mayflies. • EPHEMEROPTERAN n. any insect of the mayfly family. |
| HYPERMETROPIAS | • hypermetropias n. Plural of hypermetropia. • HYPERMETROPIA n. longsightedness, aka hyperopia, also HYPERMETROPY. |
| HYPERMETROPIES | • HYPERMETROPY n. an inability to see near objects clearly because the images received by the eye are focused behind the retina, also HYPERMETROPIA. |
| IMPROPERNESSES | • IMPROPERNESS n. the state of being improper. |
| MERCAPTOPURINE | • mercaptopurine n. (Pharmacology) An thiol antimetabolite C5H4N4S that interferes especially with the metabolism of purine… • MERCAPTOPURINE n. an antimetabolite sometimes used in the treatment of acute leukemia. |
| PEREMPTORINESS | • peremptoriness n. The quality of being peremptory. • PEREMPTORINESS n. the state of being peremptory. |
| PREEXPERIMENTS | • preexperiments n. Plural of preexperiment. |
| PREPERFORMANCE | • preperformance adj. Done or made before or in preparation for a performance. • preperformance n. Prior performance. • PREPERFORMANCE adj. preceding a performance. |
| PROPERISPOMENA | • properispomena n. Plural of properispomenon. • PROPERISPOMENON n. a word with the circumflex accent on the penultimate syllable. |
| PYROPHOTOMETER | • PYROPHOTOMETER n. a type of pyrometer in which the temperature of an incandescent body is determined by photometric measurement of the light it emits. |
| RAPPROCHEMENTS | • rapprochements n. Plural of rapprochement. • RAPPROCHEMENT n. (French) a resumption of or improvement in relations between countries or persons. |
| REAPPRAISEMENT | • REAPPRAISEMENT n. the act of reappraising. |
| SPERMATOPHORES | • spermatophores n. Plural of spermatophore. • SPERMATOPHORE n. a case enclosing the spermatozoa of certain crustaceans, molluscs and amphibians. |
| SUPERCOMPUTERS | • supercomputers n. Plural of supercomputer. • SUPERCOMPUTER n. a large very fast mainframe used esp. for scientific computations. |