China 
Africa 
- Linearly separable
- Lineation
- Linen
- Lines of code
- Lines of force
- Linezolid
- Lingo
- Link
- Link adaptation
- Link aggregation
- Link analysis
- Link budget
- Link group
- Link layer
- Link prediction
- Link-state routing protocol
- Linkages
- Linked data
- Linked lists
- Linker
- Links
- Linnaeite
- Linnik interferometer
- Linoleic acid
- Linolenic acid
- Linpack
- Linseed oil
- Linuron
- Linux
- Linux kernel
- Liouville's theorem
- Lioz
- Lip gloss
- Lip seal
- Lipase
- Lipid A
- Lipid II
- Lipid Maps
- Lipid bilayers
- Lipid droplets
- Lipid emulsion
- Lipid metabolism
- Lipid nanoparticles
- Lipid peroxidation
- Lipid polymorphism
- Lipid profile
- Lipid rafts
- Lipidome
- Lipids
- Lipinski's rule of five
- Lipiodol
- Lipocalin
- Lipocalin-2
- Lipofectamine
- Lipofuscin
- Lipogenesis
- Lipoic acid
- Lipolysis
- Lipomas
- Lipopeptides
- Lipophilic
- Lipophilicity
- Lipopolysaccharide
- Lipoprotein lipase
- Lipoprotein receptor-related protein
- Lipoproteins
- Liposomes
- Liposuction
- Lipoteichoic acid
- Lipotoxicity
- Lipoxygenase
- Lipschitz continuity
- Lipschitz continuous
- Lipschitz domain
- Liptinite
- Liquefaction
- Liquefaction of gases
- Liquefied gas
- Liquid air
- Liquid biopsy
- Liquid bleach
- Liquid carbon dioxide
- Liquid chromatography-mass spectrometry
- Liquid cooling
- Liquid crystal tunable filters
- Liquid crystals
- Liquid dielectrics
- Liquid fuel
- Liquid gas
- Liquid helium
- Liquid hydrogen
- Liquid impingement erosion
- Liquid junction potential
- Liquid line
- Liquid manure
- Liquid marbles
- Liquid metal
- Liquid metal cooled reactor
- Liquid metal embrittlement
- Liquid nitrogen
- Liquid organic hydrogen carriers
- Liquid oxygen
- Liquid phase sintering
- Liquid ring pump
- Liquid rocket propellants
- Liquid scintillation counting
- Liquid smoke
- Liquid state machines
- Liquid-based cytology
- Liquid-cooled
- Liquid-crystal polymer
- Liquid-liquid extraction
- Liquid-propellant rocket
- Liquid-ring pump
- Liquid-to-gas ratio
- Liquorice
- Liraglutide
- Lisfranc ligament
- Liskov Substitution Principle
- Lisp
- List
- Listeria monocytogenes
- Listeriosis
- Listserv
- Listwise deletion
- Litecoin
- Literals
- Literate programming
- Literature review
- Litharge
- Lithic sandstone
- Lithification
- Lithified
- Lithiophilite
- Lithium
- Lithium 12-hydroxystearate
- Lithium amide
- Lithium bicarbonate
- Lithium borate
- Lithium borohydride
- Lithium carbonate
- Lithium chloride
- Lithium cobalt oxide
- Lithium diisopropylamide
- Lithium disilicate
- Lithium fluoride
- Lithium hexafluorophosphate
- Lithium hydroxide
- Lithium iron phosphate
- Lithium iron phosphate battery