: having been changed into a fossil: subjected to fossilization
fossilized wood
And in 1997 he found several thousand fossilized eggs from a giant sauropod, or plant-eating dinosaur, just 120 miles north. The find included the first-known fossilized dinosaur embryos, as bits of fossilized dino-skin. Eric Niiler
2
: old and unchanging or outmoded
fossilized notions
As the mountains get higher, the houses become tin-roof shacks, with yards full of fossilized appliances and ancient cars. Elizabeth Gilbert
: made firm, fixed, or rigid by the passage of time
I love the living language more than the fossilized variety with its hardened meanings and set-in-stone lexicon. Paul McFedries
I know when I took photos in the past I was looking either for particularly artistic shots or ones that might become fossilized memories adorning a mantel. Robert W. Lucky