Definition of em rule in English:

em rule

Line breaks: em rule
Pronunciation: /ˈɛm ruːl/

Entry from British & World English dictionary

noun

British
A long dash (—) used in punctuation. Compare with en rule.

Definition of em rule in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day bouffant
Pronunciation: ˈbuːfɒ̃
adjective
styled to stand out in a rounded shape...