Edwards syndrome, also known as trisomy 18, is a genetic disorder caused by the presence of all, or part of a third copy of chromosome 18.
Line 18 (T18) is one of the three green lines of the Stockholm Metro connecting Alvik and Farsta strand.
The Prussian Class T 18s were the last tank locomotives developed for the Prussian state railways.
The Slingsby Hengist was a British military glider designed and built by Slingsby Sailplanes Ltd.
The T-18 light tank (also called MS-1, r, "First Small Support") was the first Soviet-designed tank.
The T18 Boarhound was an American heavy armoured car produced in small numbers for the British Army during the Second World War.
The T18 Howitzer Motor Carriage, abbreviated as HMC. was an American self-propelled gun.
The Thorp T-18 is a two-place, all-metal, plans-built, homebuilt aircraft designed in 1963 by John Thorp.