What does "antiparallel" mean?
A line that forms equal angles with two other lines, but in opposite directions.
Antiparallel
adj, noun
adj, noun ·Rare ·Advanced level
Meaning at a glance
- Primary sense: A line that forms equal angles with two other lines, but in opposite directions.
- Grammar: antiparallel is listed as adj, noun.
- Useful contrasts: parallel.
- Usage evidence: Upon interaction with ss- nucleic acid (NA) targets (deoxyribooligonucleotides (ODNs) or ribooligonucleotides), they form very stable anti-parallel and parallel duplexes [3 ], and the melting temperatures of the antiparallel duplexes are 10 to 15°C higher than those of the parallel duplexes.
How to use "antiparallel"
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Meaning check
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Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "antiparallel" in a final draft.
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Before you rely on this definition
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Compare nearby meanings
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Definition decision workflow
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Definitions
Noun
- 1 A line that forms equal angles with two other lines, but in opposite directions.
Adjective
- 1 (of vectors) Parallel but in opposite directions.; Describing the orientations of the two strands of DNA. not-comparable
"Upon interaction with ss- nucleic acid (NA) targets (deoxyribooligonucleotides (ODNs) or ribooligonucleotides), they form very stable anti-parallel and parallel duplexes [3 ], and the melting temperatures of the antiparallel duplexes are 10 to 15°C higher than those of the parallel duplexes."
- 2 (of vectors) Parallel but in opposite directions.; Describing two beta strands comprising a protein's secondary structure that are aligned and hydrogen bonded but where the vectors describing the amino- and carboxy-terminal ends of each strand are oriented 180° relative to one another. not-comparable
Adjective
- 1 (especially of vectors) parallel but oppositely directed wordnet
Antonyms
Example
"Upon interaction with ss- nucleic acid (NA) targets (deoxyribooligonucleotides (ODNs) or ribooligonucleotides), they form very stable anti-parallel and parallel duplexes [3 ], and the melting temperatures of the antiparallel duplexes are 10 to 15°C higher than those of the parallel duplexes."
Common questions
How do you use "antiparallel" in a sentence?
Upon interaction with ss- nucleic acid (NA) targets (deoxyribooligonucleotides (ODNs) or ribooligonucleotides), they form very stable anti-parallel and parallel duplexes [3 ], and the melting temperatures of the antiparallel duplexes are 10 to 15°C higher than those of the parallel duplexes.
Etymology
From anti- + parallel.