Science and Technology
- EC-No, or EC#, determined by the European Commission for identifying chemicals
- EC50, half maximal effective concentration of a drug, antibody or toxicant
- Electrical Conductivity of a solution
- EC meter (electrical conductivity meter), measures the electrical conductivity in a solution
- EC number, used for the numerical classification of enzymes
- Emergency contraception
- Entorhinal cortex, memory center in the brain
- Evolutionary Computation, Computing that utilises evolution to automatically find solutions to formally defined problems.
- Exacoulomb, an SI unit for electric charge equal to 1018 coulomb
- Embryonic carcinoma cells, a primitive model to study embryonic developmental before embryonic stem cells could be isolated reliably
- Extracellular
- Endothelial cell
- Ethylene carbonate, an ester and a popular solvent in Lithium-ion battery
- Edinburgh-Cape Blue Object Survey, an astronomical catalogue
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