- Point of zero charge
- Point-of-care testing
- Pointing
- Poiseuille equation
- Poiseuille flow
- Poison ivy
- Poisoning
- Poisonous
- Poisonous mushrooms
- Pokeweed
- Pol
- Poland syndrome
- Polar body
- Polar body biopsy
- Polar compound
- Polar molecules
- Polar surface area
- Polarimeter
- Polarity
- Polatuzumab vedotin
- Policosanol
- Polidocanol
- Polio
- Polio eradication
- Polio vaccine
- Polioencephalitis
- Poliomyelitis
- Poliosis
- Poliovirus
- Political bias
- Pollakisuria
- Pollen
- Pollen count
- Pollicization
- Pollination
- Pollutants
- Pollution prevention
- Polo-like kinase
- Polonium
- Polonium 210
- Poloxamer
- Poly
- Poly ICLC
- Poly butylene succinate
- Poly dimethylsiloxane
- Poly hexamethylenebiguanide
- Poly lactic acid
- Poly methyl methacrylate
- Poly vinyl acetate
- Poly vinyl alcohol
- Poly vinyl fluoride
- Poly(ADP-ribosylation
- Poly(a)-binding protein
- Poly(adp-ribose) glycohydrolase
- Polyacetylenes
- Polyacrylamide
- Polyacrylamide gel
- Polyacrylates
- Polyacrylic acid
- Polyacrylonitrile
- Polyaddition
- Polyadenylation
- Polyamide
- Polyamine oxidase
- Polyamines
- Polyaminopropyl biguanide
- Polyamory
- Polyaniline
- Polyarteritis nodosa
- Polyarthritis
- Polyaspartic acid
- Polybrominated biphenyls
- Polybutadiene
- Polycap
- Polycaprolactone
- Polycarbonate
- Polycarbonates
- Polycarbophil
- Polycarboxylate
- Polychlorinated biphenyls
- Polychlorinated dibenzofurans
- Polychoric correlation
- Polychromasia
- Polyclonal antibodies
- Polyclonal antibody
- Polycomb
- Polycomb repressive complex 2
- Polycomb-group proteins
- Polycondensation
- Polycoria
- Polycyclic aromatic hydrocarbons
- Polycystic kidney disease
- Polycystic liver disease
- Polycystic ovarian syndrome
- Polycystic ovary
- Polycystic ovary syndrome
- Polycystin 1
- Polycystin 2
- Polycythemia
- Polycythemia vera
- Polydactyly
- Polydextrose
- Polydiacetylenes
- Polydimethylsiloxane
- Polydioxanone
- Polydipsia
- Polydispersity
- Polydispersity index
- Polyelectrolytes
- Polyembryoma
- Polyene
- Polyenes
- Polyester
- Polyester resin
- Polyetheretherketone
- Polyetherimide
- Polyethylene
- Polyethylene glycol
- Polyethylene glycols
- Polyethyleneimine
- Polygala senega
- Polygala tenuifolia
- Polygalacturonase
- Polygenic
- Polygenic inheritance
- Polygenic scores
- Polyglactin
- Polyglutamine
- Polyglutamylation
- Polyglycerol polyricinoleate
- Polyglycolic acid
- Polyglycylation
- Polygodial
- Polygonatum
- Polygonatum odoratum
- Polygonum aviculare
- Polygonum cuspidatum
- Polygraph test
- Polygyny
- Polyhedrin
- Polyherbal formulation
- Polyhistidine tag
- Polyhydramnios
- Polyhydroxyalkanoate
- Polyhydroxyalkanoates
- Polyhydroxybutyrate
- Polyimide
- Polyimides
- Polyinosinic polycytidylic acid
- Polyisobutylene