Definition that contains venomous lizard
- genus heloderma type genus of the Helodermatidae; American venomous lizards
- heloderma type genus of the Helodermatidae; American venomous lizards
- helodermatidae only known venomous lizards
- family helodermatidae only known venomous lizards
- venomous lizard any of two or three large heavy-bodied lizards; only known venomous lizards