: converted into stone through a slow process of mineralization
petrified wood
a petrified forest
And at the Los Angeles County Museum of Natural History's annual dinosaur ball, about 800 patrons in black tie or gown waltz among the petrified remains of the once-glorious creatures. Sheldon Teitelbaum
2
: overwhelmingly fearful
was petrified of speaking in public
: rendered motionless or unable to act by fear
Charlie climbed onto the bed and tried to calm the three old people who were still petrified with fear. "Please don't be frightened," he said. "It's quite safe. And we're going to the most wonderful place in the world!" Roald Dahl
Winky's petrified brown eyes were visible through her fingers. She seemed too appalled to speak. J. K. Rowling