caprolactam

noun
cap·​ro·​lac·​tam | \ ˌka-prō-ˈlak-ˌtam \

Definition of caprolactam

: a white crystalline cyclic amide C6H11NO used especially in making one type of nylon

First Known Use of caprolactam

1944, in the meaning defined above

History and Etymology for caprolactam

caproic acid + lactone + amide

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The first known use of caprolactam was in 1944

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