(also service tree) a Eurasian tree (Sorbus domestica) similar to the rowan, with apple- or pear-shaped fruits used since Roman times to make an alcoholic drink (also called sorb)
A related European tree (wild service), Sorbus torminalis, somewhat like a maple, with clusters of round fruits
ORIGIN: OE syrfe, perh from L cerevisia the cider-like drink made from its fruit, perh from L sorbus