1. Methane gas produced by the fermentation of manure, plant, or crop waste under anaerobic conditions; used to generate electricity from waste matter

Derived forms: biogases

Encyclopedia: Biogas

• Periplaneta americana
• Periplaneta australasiae
• periplasm
• periplasmic space
• Periploca
• Periploca graeca
• peripteral
• perique
• perirhinal
• periscope
• periscopic
• periselene
• perish
• perishability
• perishable
• perishableness
• perisher
• Perisoreus
• Perisoreus canadensis
• Perisoreus canadensis capitalis
• perisperm
• perissodactyl
• perissodactyl mammal
• Perissodactyla
• peristalsis