a. A local swelling of the skin that contains watery fluid and is caused by burning or irritation.
b. A similar swelling on a plant.
a. A raised bubble, as on a painted or laminated surface.
b. A rounded, bulging, usually transparent structure, such as one used for observation on certain aircraft or for display and protection of packaged products.
v. blis·tered, blis·ter·ing, blis·ters
1. To cause a blister to form on.
2. To reprove harshly.
To break out in or as if in blisters.
[Middle English, probably from Old French blestre, of Germanic origin.]
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 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.