topoisomerase

noun
topo·isom·er·ase | \ˌtō-pō-ī-ˈsä-mə-ˌrās, -ˌrāz\

Definition of topoisomerase 

: any of a class of enzymes that reduce supercoiling in DNA by breaking and rejoining one or both strands of the DNA molecule

First Known Use of topoisomerase

1980, in the meaning defined above

History and Etymology for topoisomerase

top- + isomerase

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The first known use of topoisomerase was in 1980

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More Definitions for topoisomerase

topoisomerase

noun
topo·isom·er·ase | \ˌtō-pō-ī-ˈsäm-ə-ˌrās, -ˌrāz \

Medical Definition of topoisomerase 

: any of a class of enzymes that reduce supercoiling in DNA by breaking and rejoining one or both strands of the DNA molecule

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