aeriform

adjective

aer·​i·​form

ˈer-ə-ˌfȯrm

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

Word History

Etymology

aer- + -iform

First Known Use

1781, in the meaning defined at sense 1

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now