dark reaction

noun

Definition of dark reaction

: any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate especially : calvin cycle

First Known Use of dark reaction

1927, in the meaning defined above

Keep scrolling for more

Learn More about dark reaction

Statistics for dark reaction

Look-up Popularity

Time Traveler for dark reaction

The first known use of dark reaction was in 1927

See more words from the same year

More from Merriam-Webster on dark reaction

Rhyming Dictionary: Words that rhyme with dark reaction

Comments on dark reaction

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

WORD OF THE DAY

readily or continually undergoing change

Get Word of the Day daily email!

Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
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!