Definition of fm

 (Entry 1 of 4)

fathom

Fm

symbol

Definition of Fm (Entry 2 of 4)

fermium

FM

noun, often attributive
\ ˈef-ˌem How to pronounce FM (audio) \

Definition of FM (Entry 3 of 4)

: a broadcasting system using frequency modulation also : a radio receiver of such a system

Definition of FM (Entry 4 of 4)

field manual

First Known Use of fm

Noun

1940, in the meaning defined above

History and Etymology for fm

Noun

frequency modulation

Keep scrolling for more

Learn More about fm

Statistics for fm

Cite this Entry

“Fm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fm. Accessed 22 Apr. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for fm

FM

noun

English Language Learners Definition of FM

: a system for sending radio signals in which the number of radio waves per second is changed in order to send information in the form of sound

Fm

symbol

Medical Definition of Fm

fermium

Comments on fm

What made you want to look up fm? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!