Wiktionary
n. (context computing English) A thread of execution that is scheduled by a virtual machine, not natively by the underlying operating system.
Usage examples of "green thread".
The green thread wrapped around her fingers like a strangling vine.
Ellindyja knots the yellow-green thread with deft motions, and takes up the needle.
Over that was drawn a coverlet of deeper gold on which was worked a complicated design in sea-green thread, looped here and there to draw a pearl into line.
She went to the large worktable while she still had daylight to study the topomap spread out there: little flags sticking in it, green thread on pushpins just as she had designed it.
A glowing hologram opened before his private vision, and a green thread showed him the closest route to the gates.
Instead, in response to an unvoiced desire, a blue-green thread came drifting by him.
Unexpectedly, as the other two Weavers looked over the Youngest's shoulders, the brighter green thread took up the pattern left off by the dimmer shaded one.