noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   A configuration of DNA, a triple-stranded DNA helix structure, right-hand twisting, where the third DNA strand fills in the major groove found in B-DNA, bonding to the B-DNA with Hoogsteen-type bonding, forming Hoogsteen base pairs. uncountable
2. 2
   A DNA helix in such a configuration. countable

Etymology

From H + DNA. From containing Hoogsteen-type nucleobase bonding, in addition to Watson-Crick normal style bonding of base pairs.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.