The plural of transmission; either a system in a vehicle that transfers power from the engine to the wheels, or the act of sending something (like a signal or disease) from one place to another.
From Latin 'transmittere,' combining 'trans' (across) and 'mittere' (to send). The word entered English in the 15th century meaning 'passing across or through.'
Modern cars have increasingly complex transmissions with 8, 10, or even 12 speeds, which seems like overkill but actually works like a bicycle's gears—more options mean the engine can always run at peak efficiency, saving fuel and reducing emissions.
Complete word intelligence in one call. Free tier — 50 lookups/day.