pyr·rol·idyl
| \ -(ˌ)dil, -dᵊl \
variants:
or pyrrolidinyl \
⸗¦⸗⸗¦dēnᵊl
\
plural -s
Definition of pyrrolidyl
: any of three univalent radicals C4H8N derived from pyrrolidine by removal of one hydrogen atom
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Merriam-Webster unabridged
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