IPA: //məˈlæθaɪən//
KK: /mæləˈθaɪən/
A chemical used to kill insects, often found in agricultural and gardening products, that is less harmful to animals compared to some other pesticides.
Farmers often use malathion to protect their crops from pests.
Malathion is derived from the combination of 'mal-' (from the Greek 'malus', meaning bad) and 'thion' (from the Greek 'thion', meaning sulfur). The word refers to a chemical compound that is a bad or harmful form of sulfur used as an insecticide.
Think of 'mal-' meaning bad and 'thion' relating to sulfur, which helps you remember that malathion is a harmful chemical compound.