petasiusA large broad-rimmed bell used for summoning monks.
petasusA broad-brimmed, low-crowned hat worn by the Ancient Greeks and Romans, especially for travelling, and as often pictured to be worn by Hermes (or Mercury); (later also) the brimless winged cap worn by Hermes in later artistic depictions.
petauristAny flying marsupial of the order Phalangeriformes, such as those in genera Petaurista, Phalanger, Acrobates.
petitio principiiThe logical fallacy of begging the question (i.e., "assuming the conclusion").
petitorThe claimant or plaintiff in ancient legal systems.
PhaethusaA daughter of Helios and Neaera, the personification of the brilliant, blinding rays of the sun. With her sister, Lampetia, she guarded the cattle of Thrinacia.
phengiteAny of a series of dioctahedral micas of composition K(AlMg)₂(OH)₂(SiAl)₄O₁₀, similar to muscovite but with addition of magnesium.
PherecrateanConsisting of three prosodic feet, normally a spondee, dactyl, and spondee (or trochee), but admitting of some variations.
PherecratesA celebrated Athenian poet of the Old Comedy, living in the fifth century BCE (born after Crates and Cratinus but before Aristophanes, Eupolis, and Plato Comicus – so between c. 519 and c. 446 BCE), victorious at least thrice at the City Dionysia and the Lenaia in the 440s–430s, and inventor of the Pherecratean metre.
PherecydesAn Ancient Greek thinker from the island of Syros, who authored a cosmogony that bridged the mythological thought of Hesiod and pre-Socratic philosophy (fl. 6th century BC)
-phileForming nouns and adjectives meaning "loving", "friendly", or "friend".
PhilippopolisA city of Thrace, now Plovdiv; historical capital of the Roman province of Thracia.
phlegmonA solid mass formed by inflamed connective tissue, such as forms around an appendix in appendicitis.
PhocaeaAn ancient Ionian Greek city on the western coast of Anatolia, now located in İzmir Province, Turkey; modern Foça.
PhocianPertaining to the ancient Greek region of Phocis.
phocinePertaining to true seals (also known as earless seals, as opposed to eared seals such as sea lions); seallike.
PhocisA regional unit of the administrative region of Central Greece, in modern Greece. Capital and largest city: Amphissa. It is located north northeast of the Peloponnese, which included Delphi.
PiaristA member of the Order of Poor Clerics Regular of the Mother of God of the Pious Schools, a Catholic educational order founded in the sixteenth century.
picamarAn oily liquid hydrocarbon extracted from the creosote of beechwood tar, and consisting essentially of certain derivatives of pyrogallol.
piccageMoney paid at fairs for permission to set up booths.
piceneA polycyclic aromatic hydrocarbon consisting of five fused benzene rings; an isomer of pentacene.
Picenuma region of ancient Italy identified by the Romans.
piceousOf or pertaining to pitch (“a sticky, dark brown substance obtained from distilling turpentine or wood tar, or crude oil or tar”); having a quality like pitch.
picturaThe picture or image component of something, such as an emblem or poem, that contains a combination of imagery and text or symbols.
pignisticBeing or relating to a probability that a rational person will assign to an option when required to make a decision.