paleontology

noun
🔊/ˌpæliɒnˈtɒlədʒi/, 🔊/ˌpeɪliɒnˈtɒlədʒi/
🔊/ˌpeɪliɑːnˈtɑːlədʒi/
(especially North American English)
(British English usually palaeontology)
[uncountable]
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  1. the study of fossils (= the parts of dead animals or plants in rocks) as a guide to the history of life on earth古生物学;化石学Topics Historyc2