antiparallel

adjective

an·​ti·​par·​al·​lel
ˌan-tē-ˈper-ə-ˌlel,
ˌan-ˌtī- How to pronounce antiparallel (audio)
-ləl
: parallel but oppositely directed or oriented
antiparallel electron spins
two antiparallel chains of nucleotides comprise DNA

Word History

First Known Use

circa 1660, in the meaning defined above

Time Traveler
The first known use of antiparallel was circa 1660

Dictionary Entries Near antiparallel

Cite this Entry

“Antiparallel.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiparallel. Accessed 26 May. 2024.

Medical Definition

antiparallel

adjective
an·​ti·​par·​al·​lel ˌant-i-ˈpar-ə-ˌlel, ˌan-ˌtī-, -ləl How to pronounce antiparallel (audio)
: parallel but oppositely directed or oriented
two antiparallel chains of nucleotides comprise DNA
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