1. In a harmfully insidious manner
   "these drugs act insidiously"
   - perniciously

See also: insidious

• family Plataleidae
• 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
• family Polyangiaceae
• family Polygalaceae
• family Polygonaceae
• family Polynemidae
• family Polyodontidae
• family Polypedatidae
• family Polypodiaceae
• family Polyporaceae
• family Pomacentridae