v. per·fo·rat·ed, per·fo·rat·ing, per·fo·rates
1. To pierce, punch, or bore a hole or holes in; penetrate.
2. To pierce or stamp with rows of holes, as those between postage stamps, to allow easy separation.
To pass into or through something.
adj. (pûrfər-ĭt, -fə-rāt′)
Having been perforated.
[Latin perforāre, perforāt- : per-, per- + forāre, to bore.]
perfo·ra·ble (-fər-ə-bəl) adj.
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.