A type of independent rear suspension where the pivot axes are usually at about 25 degrees to a line running straight across the car. This arrangement gives rear-wheel camber somewhere between that of a pure trailing arm (which has no camber change relative to the body) and a swing axle (which has large camber change).
SEMI-TRAILING ARM
Meaning of SEMI-TRAILING ARM in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012