/ ˈpetrɪfaɪd; NAmE / adjective
1.
petrified (of sth) | petrified (that ... ) extremely frightened
SYN terrified :
a petrified expression
I'm petrified of snakes.
They were petrified with fear (= so frightened that they were unable to move or think) .
2.
[ only before noun ] petrified trees, insects, etc. have died and been changed into stone over a very long period of time :
a petrified forest