化石 かせき
kaseki

Noun

1. fossil

わたくし にしてるのは かい化石 かせきです。
watashiga teni shiteru nowa kaino kasekidesu
What I have in my hand is a fossil seashell.
Noun
Suru Verb

2. petrifaction; petrification; fossilization; fossilisation

Intransitive