Electro-telegraphy n. : The art or science of constructing or using the electric telegraph; the transmission of messages by means of the electric telegraph.

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Taxonomy
telegraphy, electric telegraph, science, Dictionary, lec, ra, phy, art, transmission, Unanswered questions, Webster 1913, Search, Patrick J. Cassidy, Company, Press Room, Privacy Policy, IP Issues, History.

Defination from the web:
telegraph; the transmission of ... electro-telegraphy. Dictionary: E·lec·tro-te·leg·ra·phy. Home > Library > Literature & Language > Webster 1913. n. ...