v. ven·ti·lat·ed, ven·ti·lat·ing, ven·ti·lates
1. To admit or force fresh air into (a building or closed space, such as a mine) to replace stale or noxious air.
2. To circulate through and freshen: A sea breeze ventilated the rooms.
3. To provide with a vent, as for airing.
4. To expose (a substance) to the circulation of fresh air, as to retard spoilage.
5. To expose to public discussion or examination: The students ventilated their grievances.
6. To inhale and exhale (air, for example); breathe.
7. To keep (a person or animal) breathing by artificial means.
To breathe in and out; inhale and exhale.
[Middle English ventilaten, to blow away, from Latin ventilāre, ventilāt-, to fan, from ventulus, diminutive of ventus, wind; see wē- in the Appendix of Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2019 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.