mean free path of molecules

glide path transmitter / glide-path transmitter

accident-free flying / mishap-free flying

mishap-free flying / accident-free flying

Greenwich Mean Time (GMT)

mean down time (MDT) (logistics)

mean lethal radiation dose

mean point of impact (MPI)

mean sea level

mean time between critical failure (MTBCF)

mean time between failures (MTBF) (logistics)

mean time between failures requiring overhaul

mean time between significant failures

mean takeoff weight

mean weight

mean lifetime

predicted mean life

camber of mean line

standard mean chord

first mean chord

mean aerodynamic chord

mean angular velocity of rotation

mean error

mean geometric chord

mean pressure

mean temperature

mean time between repairs (flying hours)

mean time between repairs in temperate climate

mean time between repairs in tropical climate

Earth's mean orbital speed

mean and sidereal time interval

second mean chord

put the mean point of impact on the target