Definition of autodial
noun
a function of telephonic equipment that allows for automatic dialing of preprogrammed or of randomly selected numbers:have a telephone with autodial by your bed
verb (autodials, autodialing, autodialed ; Britishautodials, autodialling, autodialled)
automatically dial a telephone number, with or without human prompting: [no object]:it had autodialed and been online for over 2hours [with object]:if the first number is busy the modem autodials the backup number