1. In some classifications considered a phylum of the kingdom Protista; in others included in the plant phylum Pyrrophyta
   - Dinoflagellata, Cilioflagellata, order Cilioflagellata

Type of: animal order

Part of: class Flagellata, class Mastigophora, Flagellata, Mastigophora

• Przewalski's horse
• précis
• PS
• PSA
• PSA blood test
• psalm
• psalmist
• psalmody
• microphonic
• microphoning
• microphotograph
• microphotography
• microphotometer
• Micropogonias
• Micropogonias undulatus
• microprocessor
• microprocessor chip
• Micropterus
• Micropterus dolomieu
• Micropterus pseudoplites
• Micropterus salmoides
• micropylar
• micropyle
• microradian
• microscope