designating vectors that are parallel but opposite in direction
Of or relating to two adjacent molecules whose sequences of atoms or other elements run in opposite directions: antiparallel strands of DNA.
- (mathematics) of vectors, parallel but of opposite direction
- (biochemistry) describing the orientations of the two strands of DNA
- (biochemistry) describing two beta strands comprising a protein's secondary structure that are aligned and hydrogen bonded but the vector describing the amino- and carboxy-terminal ends of each strand are oriented 180° relative to one another.
anti- + parallel