J
Joint United Nations Programme on HIV/AIDS
Joule
K
L
Lac
Lactation
Lager
Land cover
Land use
Landfill
Landscape
Largehead hairtail
Larynx
LCA
LD50
Lead
Legionella
Leprosy
Lesion
Leukaemia
Lichen
Life Cycle Assessment (LCA)
Life expectancy
Lipid
Lipophilic
Lipoproteins
Liquefied petroleum gas
liquid biofuel
Litter (in Forests)
Liver
LOAEL
London Convention
Low Income Food Deficit Countries
Low-till farming
Lower respiratory symptoms
Lowest Observed Adverse Effect Level
Lozenge
LSD (lysergic acid diethylamide)
Lubricant
Lung function
Lupus
Lymphatic system
Lymphoid leukaemia
Lymphoma