Malathion (noun)

A colorless, odorless insecticide used to control lice, ticks, and other pests.

Origin:

Derived from the chemical name of malathion: dimethyl (2-carboxyphenyl) phosphorothioate.

Examples:

1. Malathion is commonly used to control mosquitoes in stagnant water sources.
2. The gardener sprayed malathion on the roses to keep the aphids away.
3. Malathion is a highly effective insecticide, but it can also be toxic to birds and other wildlife.
4. The farmers used malathion to protect their crops from damage caused by pests.
5. The health department recommends using malathion to control head lice outbreaks in schools.