Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

aeriform

adjective
aer·​i·​form | \ ˈer-ə-ˌfȯrm\

Definition of aeriform

1 : having the nature of air : gaseous
2 : lacking substance or real existence : intangible figures light and aeriform come unlooked for and melt away— Thomas Carlyle

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 aeriform

1781, in the meaning defined at sense 1

History and Etymology for aeriform

aer- + -iform

Keep scrolling for more

Learn More about aeriform

Dictionary Entries near aeriform

aerie

aerification

aerifier

aeriform

aerify

aero

aeroacoustics

Statistics for aeriform

Look-up Popularity

Time Traveler for aeriform

The first known use of aeriform was in 1781

See more words from the same year

Comments on aeriform

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

Show Comments  Hide Comments 

WORD OF THE DAY

resurrection

Listen to the pronounciation of resurrection

an act or instance of returning to life

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”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

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