em: Meaning and Definition of


Pronunciation: (em), [key]
— n., pl. adj. ems,
  1. the letter M, m.
  2. Also called
    1. the square of any size of type used as the unit of measurement for matter printed in that type size.
    2. (originally) the portion of a line of type occupied by the letter M in type of the same size.
  3. See
  1. having the area of an em quad or the length of an em dash.


Pronunciation: [key]
  1. electromagnetic.
  2. electromotive.
  3. electronic mail.
  4. electron microscope; electron microscopy.
  5. end matched.
  6. Engineer of Mines.
  7. enlisted man; enlisted men.


Pronunciation: [key]
  1. emanation (def. 3).


Pronunciation: (um), [key]
  1. them: Put 'em down there.


Pronunciation: [key]
  1. var. of before b, p, and sometimes m: embalm. Cf. im-.


Pronunciation: [key]
  1. var. of before b, m, p, ph: embolism, emphasis.


Pronunciation: [key]
  1. Earl Marshal.
  2. Engineer of Mines.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
  • em (Thesaurus)