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  1. EM - Wikipedia

    Exametre or exameter (Em), an SI unit of length equal to 10 18 metres Electromagnetic spectrum, the range of all possible frequencies of electromagnetic radiation

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  3. What does EM stand for? - Abbreviations.com

    Looking for the definition of EM? Find out what is the full meaning of EM on Abbreviations.com! 'ElectroMagnetic' is one option -- get in to view more @ The Web's largest and most authoritative …

  4. EM - Definition by AcronymFinder

    106 definitions of EM. Meaning of EM. What does EM stand for? EM abbreviation. Define EM at AcronymFinder.com

  5. em - Wiktionary, the free dictionary

    2 days ago · In typography, the em is named after the em quadrat (later called em quad), from m quadrat, a metal type used in letterpress typesetting, which is as wide as the point size of the font.

  6. EM Definition & Meaning - Merriam-Webster

    : the letter m 2 : the width of a piece of type about as wide as it is tall used as a unit of measure of typeset matter EM 2 of 3 abbreviation 1 electromagnetic 2

  7. What does EM mean? - Abbreviation Finder

    This page illustrates how EM is used in messaging and chat forums, in addition to social networking software like VK, Instagram, Whatsapp, and Snapchat. From the table above, you can view all …

  8. EM- definition in American English | Collins English Dictionary

    Em- is a form of en- that is used before b-, m-, and p-. The person who embodies democracy at the local level is the mayor. I want to empower the businessman. Collins COBUILD Advanced Learner’s …

  9. <em> HTML emphasis element - HTML | MDN - MDN Web Docs

    Apr 24, 2026 · The <em> element is for words that have a stressed emphasis compared to surrounding text, which is often limited to a word or words of a sentence and affects the meaning of the sentence …

  10. Em - definition of em by The Free Dictionary

    Define em. em synonyms, em pronunciation, em translation, English dictionary definition of em. abbr. 1. electromagnetic 2. Engineer of Mines 3. enlisted man n. 1. The letter m. 2. Printing a. The width of a …