acrocranial

adjective

ac·​ro·​cra·​ni·​al
¦a-krō-¦krā-nē-əl
variants or acrocranic
¦a-krō-¦krā-nik
of a skull
: being pyramidal or pointed at the top with a breadth-height index of 98 or above
acrocrany
ˈa-krō-ˌkrā-nē
noun
plural -es

Word History

Etymology

acr- + cranial, cranic

First Known Use

1920, in the meaning defined above

Time Traveler
The first known use of acrocranial was in 1920

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!

Dictionary Entries Near acrocranial

Cite this Entry

“Acrocranial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acrocranial. Accessed 24 Jun. 2024.

Love words? Need even more definitions?

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