s-mail
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s-mail
(ĕs′māl′)n. Informal
Snail mail.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
snail′ mail`
n.
physical delivery of mail, as contrasted with electronic mail. Also called s-mail.
[1980–85]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.