LSID - mari
- LSID
- LSQA
- LT distribution board
- LTM
- LTWA
- LUB
- lug
- luminance
- luminance flicker
- luminescence
- luminescent center
- luminescent-screen tube
- luminous efficiency
- luminous flux variation
- luminous intensity
- luminous sensitivity
- luminous signal
- lumped
- lumped capacitance
- lumped capacitive loading
- lurk
- Luxembourg effect
- M out of N code
- M-wire
- machine
- machine address
- machine chest
- machine code
- machine compositor
- machine entry
- machine instruction
- machine language
- machine language instruction
- machine language op code
- machine learning
- machine ringing
- machine run
- machine time
- machine translation
- machine vision
