Dacque's principle

Dac·​que's principle | \ daˈkāz- \

Definition of Dacque's principle

: the theory that different biological groups tend to evolve in the same direction at the same time

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for Dacque's principle

after Edgar Dacqué †1945 German paleontologist

Keep scrolling for more

Learn More about Dacque's principle

Statistics for Dacque's principle

Cite this Entry

“Dacque's principle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Dacque%27s%20principle. Accessed 29 Nov. 2020.

Comments on Dacque's principle

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


Test Your Vocabulary

A Thanksgiving Word Quiz

  • a traditional thanksgiving dinner
  • November comes from a word for which of the following numbers?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

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

Love words? Need even more definitions?

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