We found 2 dictionaries that define the word double-helical:

General (1 matching dictionary)

1. double-helical: Merriam-Webster

Medicine (1 matching dictionary)

2. double-helical: Merriam-Webster Medical Dictionary

(Note: See double_helix as well.)

Definitions from Wiktionary (double helix) ▸ noun:  (metonymically) DNA. ▸ Also see double_helix ▸ Words similar to double-helical ▸ Usage examples for double-helical ▸ Idioms related to double-helical ▸ Wikipedia articles (New!) ▸ Popular adjectives describing double-helical ▸ Words that often appear near double-helical ▸ Rhymes of double-helical ▸ Invented words related to double-helical