We found 12 dictionaries that define the word isogonic line:

General (9 matching dictionaries)

1. isogonic line: Merriam-Webster
2. isogonic line: Collins English Dictionary
3. isogonic line: Vocabulary.com
4. isogonic line: Wiktionary
5. isogonic line: Dictionary.com
6. isogonic line: Rhymezone
7. isogonic line: FreeDictionary.org
8. isogonic line: Mnemonic Dictionary
9. isogonic line: TheFreeDictionary.com

Computing (1 matching dictionary)

10. isogonic line: Encyclopedia

Tech (2 matching dictionaries)

11. Glossary of Meteorology (No longer online)
12. SeaTalk Dictionary of English Nautical Language (No longer online)

(Note: See isogonic_lines as well.)

Definitions from WordNet (isogonic line) ▸ noun:  an imaginary line connecting points on the Earth's surface where the magnetic declination is the same Opposite: agonic line, agonic zone, magnetic equator ▸ Words similar to isogonic line ▸ Usage examples for isogonic line ▸ Idioms related to isogonic line ▸ Wikipedia articles (New!) ▸ Words that often appear near isogonic line ▸ Rhymes of isogonic line ▸ Invented words related to isogonic line