Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

epactal

adjective
epac·​tal | \ (ˈ)ē¦paktᵊl, (ˈ)e¦p-, ə̇ˈp-\

Definition of epactal

of a bone
: occurring irregularly in the sutures of the skull — compare wormian bone

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 epactal

probably from French épactal, from Greek epaktos + French -al

Keep scrolling for more

Learn More about epactal

Dictionary Entries near epactal

Epacridaceae

epacris

epact

epactal

epagoge

epagomenal

epalpate

Statistics for epactal

Look-up Popularity

Comments on epactal

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

Show Comments  Hide Comments 

WORD OF THE DAY

intoxicate

Listen to the pronounciation of intoxicate

to affect and impair by alcohol or a drug

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
SCRABBLE® Sprint

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