rela - reso
- relation character
- relational operator
- relative
- relative address
- relative bearing
- relative damping coefficient
- relative delay
- relative dielectric constant
- relative electric susceptibility
- relative error
- relative growth rate
- relative humidity
- relative level
- relative measurement
- relative permeability
- relative permittivity
- relative plateau slope
- relative pressure
- relative programming
- relative refractive index
- relative sensitivity
- relative slip
- relative speed variation
- relative time delay
- relative voltage regulation
- relativistic mass
- relativistic particle
- relativistic velocity
- relativity
- relaxation
- relaxation length
- relaxation oscillations
- relaxation oscillator
- relaxation phenomenon
- relaxation time
- relaxation transition
- relaxed registration
- relaxed registration photolithography
- relay
- relay amplifier
