1. Fit to be certified as insane (and treated accordingly)
   - certified 
2. Capable of being guaranteed or certified
   "a certifiable fact"

See also: certified, certify, insane

• family Lepidobotryaceae
• family Lepidodendraceae
• family Lepiotaceae
• family Lepismatidae
• family Lepisosteidae
• family Leporidae
• family Leptodactylidae
• family Leptotyphlopidae
• family Liliaceae
• family Limacidae
• family Limulidae
• family Linaceae
• family line
• family Liopelmidae
• family Liparidae
• family Liparididae
• family Lithodidae
• family Littorinidae
• family Loasaceae
• family Lobeliaceae
• family Lobotidae
• family Locustidae
• family Loganiaceae
• family Lomariopsidaceae
• family Lophiidae