Dictionary

plasmid

noun plas·mid \ˈplaz-məd\

Definition of PLASMID

:  an extrachromosomal ring of DNA especially of bacteria that replicates autonomously

Origin of PLASMID

plasma + 2-id
First Known Use: 1952

plasmid

noun plas·mid \ˈplaz-məd\   (Medical Dictionary)

Medical Definition of PLASMID

:  an extrachromosomal ring of DNA that replicates autonomously and is found especially in bacteria—compare episome

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