index fossilnoun [ C ]
uk/ˈɪn.deks ˌfɒs.əl//ˈɪn.deks ˌfɑː.səl/specializeda fossil that is found in many places and comes from the same time in history, so that scientists can use it to decide how old certain rocks are
Thesaurus: synonyms and related words
Palaeontology & fossils
- ammonite
- ammonoid
- carbon dating
- fossil
- fossil record
- fossilize
- fossilized
- microfossil
- missing link
- palaeontology
- paleontology
- petrify
- radiocarbon dating