Papyri pl. : of Papyrus

Example:
Of what importance are the Papyri in ancient medicine?

Taxonomy
papyrus, Egypt, papyrus plant, plant, codices, Egyptian, papyrus plants, sheets, fibres, New York, free encyclopedia, Greek, ancient Egypt, layers, fragments, parchment, Cyperus papyrus, far back.

Defination from the web:
papyri. ... The Villa of the Papyri at Herculaneum, containing the library of Lucius Calpurnius Piso Caesoninus, Julius Caesar's father-in-law, was preserved ... Chester Beatty Papyri — collection of 11 codices acquired by Alfred Chester Beatty in ...