China 
Africa 
- Polymer architecture
- Polymer backbone
- Polymer blends
- Polymer brush
- Polymer concrete
- Polymer degradation
- Polymer derived ceramics
- Polymer electrolytes
- Polymer engineering
- Polymer fractionation
- Polymer fume fever
- Polymer matrix composites
- Polymer science
- Polymer stabilizers
- Polymer-bonded explosive
- Polymer-drug conjugates
- Polymerase
- Polymeric foam
- Polymeric surfaces
- Polymerisation inhibitor
- Polymerization
- Polymers
- Polymersomes
- Polymetallic
- Polymethine dyes
- Polymethylhydrosiloxane
- Polymorphism
- Polymorphs
- Polymyositis
- Polymyxin
- Polymyxin B
- Polyneuropathy
- Polynomial
- Polynomial chaos
- Polynomial hierarchy
- Polynomial interpolation
- Polynomial kernel
- Polynomial long division
- Polynomial mapping
- Polynomial matrix
- Polynomial regression
- Polynomial ring
- Polynomial sequences
- Polynomial time
- Polynomial-time reduction
- Polynucleotide
- Polyol pathway
- Polyolefins
- Polyolester
- Polyols
- Polyoxometalate
- Polyoxymethylene
- Polyphagia
- Polyphenol oxidase
- Polyphenols
- Polyphenyl ether
- Polyphenylene sulfide
- Polyphosphate
- Polyphosphate-accumulating organism
- Polyphosphate-accumulating organisms
- Polyphosphazene
- Polyphthalamide
- Polyphyletic
- Polypill
- Polyploidy
- Polypropylene
- Polypropylene carbonate
- Polypropylene glycol
- Polyps
- Polypyrrole
- Polyquaternium
- Polyrotaxanes
- Polysaccharides
- Polysilicon
- Polysomes
- Polysomnography
- Polysorbate
- Polysorbate 20
- Polysorbate 80
- Polyspace
- Polystyrene
- Polystyrene sulfonate
- Polysulfide
- Polysulfone
- Polytetrafluoroethylene
- Polytetrahydrofuran
- Polythiophene
- Polytope model
- Polytopes
- Polytrauma
- Polytropic
- Polyunsaturated fat
- Polyunsaturated fatty acids
- Polyurea
- Polyurethane
- Polyurethane dispersion
- Polyurethane foam
- Polyuria
- Polyvinyl acetate
- Polyvinyl alcohol
- Polyvinyl butyral
- Polyvinyl chloride
- Polyvinyl fluoride
- Polyvinylidene chloride
- Polyvinylidene fluoride
- Polyvinylpolypyrrolidone
- Polyvinylpyrrolidone
- Polyvinyltoluene
- Polyyne
- Pomace
- Pomegranates
- Ponceau 4R
- Pondage
- Ponderomotive force
- Ponding
- Ponds
- Ponors
- Pons
- Pontiac fever
- Pontryagin's maximum principle
- Pontryagin's minimum principle
- Pool
- Pool fire
- Pooled variance
- Pooling
- Popliteal artery
- Popliteal fossa
- Popliteus
- Popliteus muscle
- Popov criterion
- Poppet valves
- Population
- Population balance equation
- Population biology
- Population density
- Population dynamics
- Population ecology
- Population genetics
- Population growth
- Population inversion
- Population models
- Population pressure
- Population proportion
- Population pyramid
- Population size
- Population viability analysis
- Population-based incremental learning
- Porcelain
- Porcelain tile
- Pore space in soil