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/ˈpɪɹəlɪˌdəʊn/ · noun
(chemistry) any of a class of heterocyclic ketones derived from a pyrrolidine; especially 2-pyrrolidone, the simplest γ-lactam.
Use pyrrolidone when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Pyrrolidone means (chemistry) any of a class of heterocyclic ketones derived from a pyrrolidine; especially 2-pyrrolidone, the simplest γ-lactam.
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use pyrrolidone where its definition matches the intended context.
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