1. Relating to or resulting from the action of a torrent
   "torrential erosion"; "torrential adaptations seen in some aquatic forms" 
2. Resembling a torrent in force and abundance
   "torrential applause"; "torrential abuse"; "the torrential facility and fecundity characteristic of his style" 
3. Pouring in abundance
   "torrential rains"

See also: abundant, torrent, uncontrolled

• petitio principii
• petition
• petitionary
• petitioner
• Petrarca
• Petrarch
• Petrarchan sonnet
• petrel
• Petri dish
• petrifaction
• petrification
• Petrified Forest National Park
• petrify
• petrifying
• Petrine
• petrissage
• petrochemical
• petrochemistry
• Petrocoptis
• petrodollar
• Petrogale
• petroglyph
• Petrograd
• petrography
• petrol