1. In a very painful manner
   - agonizingly, torturously, agonisingly [Brit]

See also: excruciating

• genus Perisoreus
• genus Peristedion
• genus Pernis
• genus Perodicticus
• genus Perognathus
• genus Peromyscus
• genus Peronospora
• genus Persea
• genus Persoonia
• genus Pertusaria
• genus Petasites
• genus Petaurista
• genus Petaurus
• genus Petrocoptis
• genus Petrogale
• genus Petromyzon
• genus Petroselinum
• genus Petteria
• genus Petunia
• genus Peziza
• genus Pezophaps
• genus Phacelia
• genus Phacochoerus
• genus Phaethon
• genus Phaius