Aalenian

adjective
Aa·​le·​ni·​an | \ ä-ˈlē-nē-ən How to pronounce Aalenian (audio) \

Definition of Aalenian

: of, relating to, or being a period of the Middle Jurassic lasting from approximately 176 million years ago until 172 million years ago This applies particularly to the thickest of the sandstones, the Bearreraig Sandstone of Aalenian to Bajocian age.— J. D. Hudson et al., Journal of the Geological Society, September 2011 — see Geologic Time Table

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!

Other Words from Aalenian

Aalenian noun
Subsequently, during the Aalenian, the motile forms (still present in the water column) had become adapted to life in stressed salinities … — Alister James Powell and J. B. Riding, Recent Developments in Applied Biostratigraphy, 2005

First Known Use of Aalenian

1882, in the meaning defined above

History and Etymology for Aalenian

borrowed from French aalénien, from Aalen, town in Württemberg, Germany, the location of strata defining the period + -ien -ian

Learn More About Aalenian

Time Traveler for Aalenian

Time Traveler

The first known use of Aalenian was in 1882

See more words from the same year

Dictionary Entries Near Aalenian

AAL

Aalenian

aalii

See More Nearby Entries 

Statistics for Aalenian

Cite this Entry

“Aalenian.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Aalenian. Accessed 29 May. 2022.

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

WORD OF THE DAY

Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

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!