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 (ăn′tē-păr′ə-lĕl′, ăn′tī-)
Of or relating to two adjacent molecules whose sequences of atoms or other elements run in opposite directions: antiparallel strands of DNA.


1. (General Physics) physics parallel but pointing in the opposite direction
2. (Mathematics) maths (of vectors) parallel but having opposite directions
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Adj.1.antiparallel - (especially of vectors) parallel but oppositely directed; "antiparallel vectors"
parallel - being everywhere equidistant and not intersecting; "parallel lines never converge"; "concentric circles are parallel"; "dancers in two parallel rows"
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References in periodicals archive ?
Using two inverse parallel sensitive gate silicon-controlled rectifiers (SCRs) as the voltage breakover triggering device allows the controlling circuit to produce a wide range of light level outputs.
This paper presents the study of the deforming state generated by the AC/AC converter with full-wave AC control using two SCRs (silicon--controlled rectifier) connected in inverse parallel. For this study, we use Fourier and Wavelet transforms.
In an inverse parallel, cultural expression is often said to fall silent before the quiescent sameness of conjugal normativity (benign or asinine, perhaps depending on one's sexual politics).

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