valerolactone
noun
va·le·ro·lactone
| \ və¦li(ˌ)rō, ¦valərō+\
Definition of valerolactone
: the lactone C5H8O2 of any hydroxy derivative of valeric acid
especially
: the γ-lactone found in pyroligneous acid, made synthetically, and used chiefly as a solvent
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