(dated, medicine) poliomyelitis

plural of parade-goer

Alternative form of paradegoer

A thought experiment involving a game between two players, one of whom purports to be able to predict the future. The first player has to try to maximize winnings by choosing one of two boxes of money; however, the amount won also depends on whether a prediction made about the choice by the other player proves to be true.

plural of paradise parrot

plural of parallel text

Alternative form of twin paradox

The apparent contradiction that, although water is generally more useful than diamonds, diamonds command a higher price in the market.

plural of parasitic gap

A parrot, formerly native to large parts of the United States, but now extinct, Conuropsis carolinensis