Synonyms:
- ancient manuscript,
- antique,
- antiquity,
- archaism,
- arteriosclerosis,
- artifact,
- atherosclerosis,
- calcification,
- callusing,
- case hardening,
- cave painting,
- concretion,
- cornification,
- crystallization,
- eolith,
- firming,
- fossil,
- fossilization,
- granulation,
- hardening,
- hornification,
- induration,
- lapidification,
- lithification,
- mezzolith,
- microlith,
- neolith,
- ossification,
- paleolith,
- petrifaction,
- petrified forest,
- petrified wood,
- petroglyph,
- plateaulith,
- relic,
- reliquiae,
- remains,
- ruin,
- ruins,
- sclerosis,
- setting,
- solidification,
- steeling,
- stiffening,
- survival,
- tempering,
- toughening,
- vestige,
- vitrifaction,
- vitrification