cap·​ro·​lac·​tam ˌka-prō-ˈlak-ˌtam How to pronounce caprolactam (audio)
: a white crystalline cyclic amide C6H11NO used especially in making one type of nylon

Word History


caproic acid + lactone + amide

First Known Use

1944, in the meaning defined above

Time Traveler
The first known use of caprolactam was in 1944

Dictionary Entries Near caprolactam

Cite this Entry

“Caprolactam.” Dictionary, Merriam-Webster, Accessed 17 Jul. 2024.

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