Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

geocline

noun
ge·​o·​cline | \ ˈjēōˌklīn\

Definition of geocline

: the gradation in variation of any widespread polytypic group of organisms along geographical lines — compare allen's rule , bergmann's rule

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 geocline

ge- + -cline

Keep scrolling for more

Learn More about geocline

Statistics for geocline

Look-up Popularity

Comments on geocline

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

Show Comments  Hide Comments 

WORD OF THE DAY

acquisitive

Listen to the pronounciation of acquisitive

having a desire to acquire more things

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Citation

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!

Words at Play
Ask the Editors
Word Games