broad-spectrumˌbroad-ˈspectrum adjective [only before noun] 
broad-spectrum chemicals or medicines are effective against a wide range of pests, diseases etc
broad-spectrum chemicals or medicines are effective against a wide range of pests, diseases etc- Leader of the House
- Leader of the Opposition
- leadership
- lead-free
- lead-in
- leading
- leading article
- leading-edge
- lead-off
- lead story
- lead time
- lead-up
- leaf
- leafless
- leaflet
- leaf mould
- leafy
- league
- League against Cruel Sports
- League of Arab States
- League of Nations
- League of Women Voters
- league table
- leak
- leakage