From WordNet (r) 2.0 (August 2003) [wn]:
jersey
n 1: a close-fitting pullover shirt [syn: T-shirt, tee shirt]
2: a slightly elastic machine-knit fabric
3: breed from the island of Jersey [syn: Jersey]
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Jersey \Jer"sey\, n.; pl. Jerseys. [From Jersey, the largest
of the Channel Islands.]
[1913 Webster]
1. The finest of wool separated from the rest; combed wool;
also, fine yarn of wool.
[1913 Webster]
2. A kind of knitted jacket; hence, in general, a
closefitting jacket or upper garment made of an elastic
fabric (as stockinet).
[1913 Webster]
3. One of a breed of cattle in the Island of Jersey. Jerseys
are noted for the richness of their milk.
[1913 Webster]