thread(redirected from threaded e-mail)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Related to threaded e-mail: Threaded discussion
THREAD. A figurative expression used to signify the central line of a stream or water course. Harg. Tracts, 5; 4 Mason's Rep. 397; Holt's R. 490. Vide Filum aguae; Island; Water course; River.