air curtain

noun

Definition of air curtain

:an artificially created stream of moving air that is blown across a doorway or other opening to create a barrier (as for repelling flying insects or preventing heat transfer)
  • In addition to requiring the cleanup and repairs, the health inspector also suggested the business install an air curtain at the back door leading to the food preparation room to control flies …
  • —Joseph Deinlein, Evening Sun (Hanover, Pennsylvania)20 July 2009
  • The air curtain differs from a solid door as it provides no physical barrier between customer and product …
  • —S. J. James and C. JamesMeat Refrigeration2002

There's more!

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!
Already a subscriber? Log in.

First Known Use of air curtain

1894


Seen and Heard

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

all at once

Get Word of the Day daily email!

Test Your Vocabulary

Challenging Vocabulary Quiz Returns!

  • stylized-drawing-of-woman-pole-vaulting-across-gap-to-get-trophy
  • Which is a synonym of fuliginous?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Citation

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!