IPA: /ˌmɛtəˈlɒɡrəfɪk/
KK: /mɛˌtæl.əˈɡrɑː.fɪk/
Relating to the study of the physical and chemical structure of metals and their alloys.
The metallographic analysis revealed the grain structure of the steel sample.
Metallographic → It is formed from "metallum" (from Latin, meaning metal) and "graphia" (from Greek, meaning writing or description). The word "metallographic" refers to the description or study of metals, particularly their structure and properties.
Think of 'metal' as the subject being studied and 'graphy' as the act of describing or writing about it — that's why metallographic relates to the study of metals.