China 
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- Ecological diversity
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- Economy 7
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- Ectonucleotidase
- Ectopic beats
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- Eczema
- Edaphic
- Eddies
- Eddy
- Eddy covariance
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- Eddy current separators
- Eddy currents
- Eddy diffusion
- Eddy-current sensor
- Eddy-current testing
- Eddystone
- Edema
- Edge
- Edge cases
- Edge computing
- Edge contraction
- Edge detection
- Edge devices
- Edge dominating set
- Edge effects
- Edge enhancement
- Edge list
- Edge of chaos
- Edge-connected
- Edge-preserving smoothing
- Edge-transitive
- Edinburgh Handedness Inventory
- Edinger-Westphal nucleus
- Edingtonite
- Edit distance
- Edman degradation
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- Eemian
- Effect size
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- Effective diffusion coefficient
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- Efferent ducts
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- Efficient XML interchange
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- Efflux
- Effusion
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- Egg cells
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- Egg white
- Eggerthella lenta
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- Ehlers-Danlos Syndrome
- Eicosanoids
- Eidors
- Eigen
- Eigendecomposition
- Eigenface
- Eigenfunctions
- Eigengap
- Eigenmode expansion
- Eigenstrain
- Eigentrust
- Eigenvalue algorithms
- Eigenvalues
- Eigenvalues and eigenvectors
- Eigenvector centrality
- Eikonal approximation
- Eikonal equation
- Einstein notation
- Einstein relation
- Einsteinium
- Ejaculatory duct
- Ejecta