\Thros"tle\, n. [OE. throsel, AS. [thorn]rostle,
[thorn]rosle; akin to MHG. trostel, G. drossel, Icel.
[thorn]r["o]str, Sw. trast, Lith. strazdas, L. turdus.
[root]238. Cf. {Thrush} the bird.]
1. (Zo["o]l.) The song thrush. See under {Song}.
2. A machine for spinning wool, cotton, etc., from the rove,
   consisting of a set of drawing rollers with bobbins and
   flyers, and differing from the mule in having the twisting
   apparatus stationary and the processes continuous; -- so
   called because it makes a singing noise.
{Throstle cock}, the missel thrush. [Prov. Eng.]