- lending limit
- lens element
- layer deposition
- layer thickness
- laying length
- leaf node
- lecture call
- legal time
- length specification
- lens antenna
- lenticular screen
- letters case
- level diagram
- level number
- level stability
- leveling amplifier
- levelling amplifier
- levitated
- library subroutine
- life expectancy
- leap second
- length corrections
- length standard
- letter shift
- letter symbol
- level adjustment
- level control
- level shifting
- library point
- life insurance
- life raft
- life span
- liftoff time
- light chopper
- light detection
- light echo
- light enable
- light loading
- light modulation
- light pen
- light sensitivity
- light sensor
- light spot
- lightning strike
- limit cycling
- limiting
- limiting error
- limiting set
- line code
- line count
- line finder
- line group
- line lock
- line module
- line repeater
- line set
- line size
- line speed
- line switching
- line system
- line transformer
- limit priority
- limiter discriminator
- limiting amplifier
- line amplifier
- line circuit
- line driver
- line element
- line feed
- line filter
- line impedance
- line input
- line link
- line loop
- line network
- line noise
- line rate
- line relay
- line rental
- line reversal
- line selector
- line signal
- line spectrum
- line switch
- line traffic
- linear amplification
- linear antenna
- linear approximation
- linear atmosphere
- linear behavior
- linear behaviour
- linear branch
- linear channel
- linear characteristic
- linear correction
- linear crosstalk
- linear detection
- linear file
- linear filtering
- linear interpolation