- Any of various units of matter below the size of an atom, including the elementary particles and hadrons.亚原子粒子：尺寸小于原子的各种物质单位之任何一种，包括基本粒子及强子
- electrochemistry
- electrochromic
- electrocoagulation
- electroconvulsive shock
- electroconvulsive therapy
- electrocute
- electrocuted
- electrocutes
- electrocuting
- electrode
- electrodeposit
- electrodermal
- electrodes
- electrodialysis
- electrodynamics
- electrodynamometer
- electroencephalogram
- electroencephalograph
- electroform
- electrogasdynamics
- electrogenesis
- electrograph
- electrohydraulic
- electrojet
- electrokinetics