antiparallel

adjective an·ti·par·al·lel \ˌan-tē-ˈper-ə-ˌlel, ˌan-ˌtī-, -ləl\

Definition of ANTIPARALLEL

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

circa 1660

Medical Dictionary

adjective an·ti·par·al·lel \ˌant-i-ˈpar-ə-ˌlel, ˌan-ˌtī-, -ləl\

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

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