Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

acentrous

adjective
acen·​trous | \ (ˈ)ā¦sen‧trəs\

Definition of acentrous 

of some primitive fishes
: having the notochord persistent through life and lacking vertebral centra

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!

First Known Use of acentrous

1887, in the meaning defined above

History and Etymology for acentrous

a- entry 2 + centr- + -ous

Keep scrolling for more

Learn More about acentrous

Dictionary Entries near acentrous

-acene

acenesthesia

acentric

acentrous

-aceous

acephal

Acephala

Statistics for acentrous

Look-up Popularity

Time Traveler for acentrous

The first known use of acentrous was in 1887

See more words from the same year

Comments on acentrous

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

Show Comments  Hide Comments 

WORD OF THE DAY

nomothetic

involving abstract or general statements

Get Word of the Day daily email!

Test Your Vocabulary

Liar, Liar Quiz

  • alt-5761dbe2ba986
  • Someone who pretends to be sick in order to avoid work is a:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

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