antiparallel

adjective
an·​ti·​par·​al·​lel | \ ˌan-tē-ˈper-ə-ˌlel How to pronounce antiparallel (audio) , ˌan-ˌtī-, -ləl\

Definition of antiparallel

: parallel but oppositely directed or oriented antiparallel electron spins two antiparallel chains of nucleotides comprise DNA

First Known Use of antiparallel

circa 1660, in the meaning defined above

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The first known use of antiparallel was circa 1660

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antiparallel

adjective
an·​ti·​par·​al·​lel | \ ˌant-i-ˈpar-ə-ˌlel, ˌan-ˌtī-, -ləl How to pronounce antiparallel (audio) \

Medical Definition of antiparallel

: parallel but oppositely directed or oriented two antiparallel chains of nucleotides comprise DNA

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