Definition of em rule in English:

em rule

Line breaks: em rule
Pronunciation: /ˈɛm ruːl
 
/

noun

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

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day grotesquerie
Pronunciation: grəʊˈtɛskəri
noun
grotesque quality or grotesque things collectively