| AMPELOPSIS | • ampelopsis n. A vine of the genus Ampelopsis. • Ampelopsis prop.n. A taxonomic genus within the family Vitaceae – peppervine, porcelain berry, and other vines.
 • AMPELOPSIS n. a woody vine.
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| AMPHIPLOID | • amphiploid adj. (Genetics) Having at least one diploid set of chromosomes from each parent species. • amphiploid n. (Genetics) Any organism having at least one diploid set of chromosomes from each parent species.
 • AMPHIPLOID n. having at least one set of diploid chromosomes derived from each parent species.
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| APOMORPHIA | • apomorphia n. (Pharmacology) apomorphine. • APOMORPHIA n. an alkaloid prepared by dehydrating morphine, also APOMORPHINE.
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| APOPEMPTIC | • apopemptic adj. Pertaining to departing; farewell, valedictory. • apopemptic n. (Obsolete) A farewell or parting address.
 • APOPEMPTIC adj. relating to departing or leave-taking; valedictory.
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| APPROXIMAL | • approximal adj. Near or adjacent. • approximal adj. Contiguous.
 • APPROXIMAL adj. close together, next to.
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| EPIPHONEMA | • epiphonema n. (Rhetoric) An exclamation or reflection used to summarise or round off an argument or discourse. • EPIPHONEMA n. an exclamation, finishing phrase or reflection.
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| HIPPOCAMPI | • hippocampi n. Plural of hippocampus. • HIPPOCAMPUS n. one of two ridges along each lateral ventricle of the brain.
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| HIPPODAMES | • hippodames n. Plural of hippodame. • HIPPODAME n. (Spenser) a fabulous sea monster.
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| HIPPOMANES | • hippomanes n. (Obsolete) An ancient love philter obtained from a mare or foal. • HIPPOMANES n. an ancient philtre obtained from a mare or foal.
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| PAMPOOTIES | • pampooties n. Plural of pampootie. • PAMPOOTIE n. a rawhide slipper worn by men in the Aran Islands.
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| PANSOPHISM | • pansophism n. Pansophy. • pansophism n. (Historical) The 17th-century movement of the pansophists, who wished to organize all human knowledge.
 • PANSOPHISM n. the claim to know everything.
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| PAPILLOMAS | • papillomas n. Plural of papilloma. • PAPILLOMA n. a tumour formed by hypertrophy of a papilla or papillae, such as a wart, etc.
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| PARAPODIUM | • parapodium n. (Zoology) Any of the paired unjointed lateral outgrowths used for locomotion by worms such as annelids. • parapodium n. (Zoology) A lateral expansion on both sides of the foot in some gastropods, often used as a swimming organ.
 • PARAPODIUM n. a jointless muscular lateral appendage occurring in pairs in polychaete worms.
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| PEPEROMIAS | • peperomias n. Plural of peperomia. • PEPEROMIA n. a genus of subtropical herbaceous plants.
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| PIROPLASMA | • piroplasma n. (Epidemiology, microbiology) Babesia, a genus of hematozoa that invades the red blood cells of humans… • piroplasma n. Any of many other parasitic protozoa related to Babesia in order Piroplasmida.
 • PIROPLASMA n. a parasite causing cattle fever, aka babesia, also PIROPLASM.
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| PIROPLASMS | • piroplasms n. Plural of piroplasm. • PIROPLASM n. a parasite causing cattle fever, aka babesia, also PIROPLASMA.
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| POLYPARIUM | • polyparium n. (Biology) The stem, or supporting structure, of any colonial cnidarian such as coral. • POLYPARIUM n. the framework and base of a polyp colony, esp. coral, also POLYPARY.
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| POPULARISM | • popularism n. Any political doctrine chosen to appeal to a majority of the electorate. | 
| POSTIMPACT | • postimpact adj. After an impact. • POSTIMPACT adj. after an impact.
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| PSAMMOPHIL | • PSAMMOPHIL n. a sand-loving plant, also PSAMMOPHILE. |