molecular formula

noun

Definition of molecular formula 

: a chemical formula that gives the total number of atoms of each element in each molecule of a substance — compare structural formula

First Known Use of molecular formula

1861, in the meaning defined above

Keep scrolling for more

Learn More about molecular formula

Share molecular formula

Statistics for molecular formula

Look-up Popularity

Time Traveler for molecular formula

The first known use of molecular formula was in 1861

See more words from the same year

Keep scrolling for more

More Definitions for molecular formula

molecular formula

noun

Medical Definition of molecular formula 

: a chemical formula for a compound existing as discrete molecules that gives the total number of atoms of each element in a molecule the molecular formula for water is H2O — see structural formula — compare empirical formula

More from Merriam-Webster on molecular formula

Britannica.com: Encyclopedia article about molecular formula

Comments on molecular formula

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

WORD OF THE DAY

required by fashion, etiquette, or custom

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

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!