/may"leuhr/ , n.
1. a person who mails or prepares material for mailing.
2. a container, as a mailing tube or protective envelope, for mailing papers, books, merchandise, etc.
3. an advertising brochure, form letter, or the like, sent out in the mail.
4. See mailing machine .
5. Archaic. a mailboat.
[ 1880-85, Amer.; MAIL 1 + -ER 1 ]