Japanese mackerel

noun

Definition of Japanese mackerel 

: a widely distributed mackerel (Pneumatophorus japonicus) of the western Pacific

called also opelu

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!

Learn More about Japanese mackerel

Share Japanese mackerel

Statistics for Japanese mackerel

Look-up Popularity

Comments on Japanese mackerel

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

WORD OF THE DAY

to make faulty or ineffective

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

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!