1. To convert into a fossil; to petrify; as, to fossilize bones or wood.
2. To cause to become antiquated, rigid, or fixed, as by fossilization; to mummify; to deaden. Ten layers of birthdays on a woman's head Are apt to fossilize her girlish mirth. (Mrs. Browning)
Origin: cf. F. Fossiliser.
1. To become fossil.
2. To become antiquated, rigid, or fixed, beyond the influence of change or progress.