IPA: /ˈkætəˌleɪz/
KK: /ˈkætəˌleɪs/
A type of enzyme that helps break down hydrogen peroxide into water and oxygen, which is important for protecting cells from damage.
Catalase is essential for preventing the buildup of hydrogen peroxide in cells.
Catalase is formed from "cata-" (from Greek "kata", meaning down or against) and "lase" (from the Greek "lasein", meaning to break). The word refers to an enzyme that breaks down hydrogen peroxide into water and oxygen, thus acting against its harmful effects.
Think of 'breaking down' ('cata-') substances, as catalase is an enzyme that helps break down hydrogen peroxide.