n.; pl. Jennies [ 1913 Webster ]
1. A familiar or pet form of the proper name Jane. [ 1913 Webster ]
2. (Zool.) A familiar name of the European wren. [ 1913 Webster ]
Jenny ass (Zool.), a female ass; also, a female of certain other animals. [ 1913 Webster +PJC ]
n. [ A corruption of gin an engine; influenced by Jenny, the proper name. See Gin an engine, and cf. Ginny-carriage. ] A machine for spinning a number of threads at once, -- used in factories. Also called spinning jenny. [ 1913 Webster ]