- to change into a fossil or fossils; petrify
- to make out of date, rigid, or incapable of change
to become fossilized
verbfos·sil·ized, fos·sil·iz·ing, fos·sil·iz·es
- To convert into a fossil.
- To make outmoded or inflexible with time; antiquate.
To become a fossil.
(third-person singular simple present fossilizes, present participle fossilizing, simple past and past participle fossilized)