- Phase distortion
- Phase factor
- Phase field models
- Phase inversion
- Phase lag
- Phase line
- Phase margin
- Phase modulation
- Phase noise
- Phase plane
- Phase portrait
- Phase problem
- Phase response
- Phase response curve
- Phase retrieval
- Phase rule
- Phase separation
- Phase shifters
- Phase space
- Phase space formulation
- Phase space method
- Phase splitter
- Phase synchronization
- Phase transfer catalyst
- Phase transformations
- Phase transitions
- Phase velocity
- Phase vocoder
- Phase-change material
- Phase-contrast x-ray imaging
- Phase-field models
- Phase-shift oscillator
- Phase-shifting transformers
- Phase-space formulation
- Phase-transfer catalyst
- Phased array
- Phenanthrene
- Phenanthroline
- Phenazine
- Phenazone
- Phenethylamine
- Phengite
- Phenocrysts
- Phenol
- Phenol extraction
- Phenol formaldehyde resin
- Phenol red
- Phenol-chloroform extraction
- Phenolate
- Phenolates
- Phenolic acids
- Phenolic aldehydes
- Phenolic lipids
- Phenolic resin
- Phenolphthalein
- Phenols
- Phenomenological
- Phenomenological model
- Phenomenology
- Phenothiazine
- Phenotype
- Phenotypes
- Phenotypic plasticity
- Phenoxyethanol
- Phenyl
- Phenyl group
- Phenyl isocyanate
- Phenyl-c61-butyric acid methyl ester
- Phenylacetaldehyde
- Phenylacetic acid
- Phenylalanine
- Phenylalanine ammonia-lyase
- Phenylalanine hydroxylase
- Phenylboronic acid
- Phenylene
- Phenylenediamine
- Phenylephrine
- Phenylhydrazine
- Phenylhydroxylamine
- Phenylketonuria
- Phenylpropanoid biosynthesis
- Phenylpropanoids
- Phenytoin
- Pheochromocytoma
- Pheophorbide
- Pheophorbide a
- Pheophytin
- Pheromone trails
- Pheromones
- Phi coefficient
- Phi x 174
- Philae
- Phillipsite
- Philosophy of artificial intelligence
- Philosophy of design
- Phishing
- Phlebitis
- Phlegm
- Phloem
- Phlogopite
- Phon
- Phonation
- Phong reflection model
- Phong shading
- Phonocardiogram
- Phonolite
- Phonon scattering
- Phonons
- Phorbol
- Phorbol esters
- Phosphagen
- Phosphatase
- Phosphate
- Phosphate acetyltransferase
- Phosphate binders
- Phosphate conversion coating
- Phosphate glass
- Phosphate minerals
- Phosphate test
- Phosphatidate phosphatase
- Phosphatidic acid
- Phosphatidylcholine
- Phosphatidylethanolamine
- Phosphatidylglycerol
- Phosphatidylinositol
- Phosphatidylinositol 3-phosphate
- Phosphatidylserine
- Phosphazene
- Phosphene
- Phosphides
- Phosphinate
- Phosphine
- Phosphine ligands
- Phosphine oxide
- Phosphinite
- Phosphite
- Phosphites
- Phosphocholine
- Phosphocreatine
- Phosphodiester bonds
- Phosphodiesterase
- Phosphoenolpyruvate
- Phosphoenolpyruvate carboxylase
- Phosphofructokinase
- Phosphoglucomutase
- Phosphogluconate dehydrogenase
- Phosphoglucose isomerase
- Phosphoglycerate kinase
- Phosphogypsum
- Phosphoinositide 3-kinase