IPA: /ˌstrɛp.təˈkɒk.əl/
KK: /strɛptəˈkɑkəl/
Relating to a type of bacteria known as streptococcus, which can cause infections.
The doctor diagnosed her with a streptococcal infection after examining her throat.
Streptococcal → It is formed from "strepto-" (from Greek "streptos", meaning twisted) and "coccus" (from Greek "kokkos", meaning berry). The term refers to bacteria that are twisted in shape and resemble berries, specifically those that grow in chains.
Imagine bacteria that are 'twisted' ('strepto-') and look like 'berries' ('coccus') — that's how you remember that streptococcal refers to this type of bacteria.