petrifaction

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. the process of turning some plant material into stone by infiltration with water carrying mineral particles without changing the original shape
• Syn:
petrification
• Derivationally related forms:
petrify (for: petrification), petrify
• Hypernyms:
fossilization, fossilisation
2. a rock created by petrifaction;
an organic object infiltrated with mineral matter and preserved in its original form
• Derivationally related forms:
petrify
• Hypernyms:
rock, stone