1. Of or relating to a catechism summarizing the principles of Christianity

See also: catechism

• family Platanaceae
• family Platanistidae
• family Platycephalidae
• family Plethodontidae
• family Pleurobrachiidae
• family Pleuronectidae
• family Ploceidae
• family Plumbaginaceae
• family Pluteaceae
• family Poaceae
• family Podargidae
• family Podicipedidae
• family Podocarpaceae
• family Poeciliidae
• family Polemoniaceae
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• family Polygonaceae
• family Polynemidae
• family Polyodontidae
• family Polypedatidae
• family Polypodiaceae
• family Polyporaceae
• family Pomacentridae
• family Pomatomidae