| pius v | (n) Italian pope from 1566 to 1572 who led the reformation of the Roman Catholic Church; he excommunicated Elizabeth I (1504-1572), Syn. Antonio Ghislieri |
| pius vi | (n) Italian pope from 1775 to 1799 who served during the French Revolution; Napoleon attacked the Papal States and in 1797 Pius VI was taken to France where he died (1717-1799), Syn. Giannangelo Braschi, Giovanni Angelo Braschi |
| pius vii | (n) Italian pope from 1800 to 1823 who was humiliated by Napoleon and taken prisoner in 1809; he concluded a concordat with Napoleon and crowned him emperor of France; he returned to Rome in 1814 (1740-1823), Syn. Luigi Barnaba Gregorio Chiaramonti, Barnaba Chiaramonti |
| thresher | (n) large pelagic shark of warm seas with a whiplike tail used to round up small fish on which to feed, Syn. thrasher, Alopius vulpinus, thresher shark, fox shark |