We found 26 dictionaries that define the word magnetite:

General (19 matching dictionaries)

1. magnetite: Merriam-Webster
2. magnetite: Oxford Learner's Dictionaries
3. magnetite: American Heritage Dictionary of the English Language
4. magnetite: Collins English Dictionary
5. magnetite: Vocabulary.com
6. Magnetite, magnetite: Wordnik
7. magnetite: Wiktionary
8. magnetite: Webster's New World College Dictionary, 4th Ed.
9. magnetite: The Wordsmyth English Dictionary-Thesaurus
10. magnetite: Infoplease Dictionary
11. magnetite: Dictionary.com
12. Magnetite: Wikipedia, the Free Encyclopedia
13. Magnetite: Online Plain Text English Dictionary
14. magnetite: Webster's Revised Unabridged, 1913 Edition
15. magnetite: Rhymezone
16. magnetite: FreeDictionary.org
17. magnetite: Mnemonic Dictionary
18. magnetite: TheFreeDictionary.com
19. Magnetite: AllWords.com Multi-Lingual Dictionary

Computing (1 matching dictionary)

20. magnetite: Encyclopedia

Medicine (2 matching dictionaries)

21. online medical dictionary (No longer online)
22. magnetite: Medical dictionary

Science (3 matching dictionaries)

23. Archaeology Wordsmith (No longer online)
24. Magnetite: Eric Weisstein's World of Chemistry
25. MAGNETITE: The Mineral Gallery

Tech (1 matching dictionary)

26. PUMP AND SEAL TERMS (No longer online)

(Note: See magnetites as well.)

Definitions from Wiktionary (magnetite) ▸ noun:  (mineralogy) A magnetic mineral, Fe₃O₄, one of the primary ores of iron. Similar: magnetic iron-ore, ferromagnetite, siderite, magnesioferrite, lodestone, maghemite, magnetoplumbite, magnetoferritin, magnesia, titanmagnetite, more... Opposite: diamagnetic, nonmagnetic, repulsive Types: lodestone, magnet, more... Phrases: bauxite and magnetite, more... Adjectives: titaniferous, pure, less, grained, accessory, much, secondary, black, abundant, natural, massive Colors:     black,     dark gray,     charcoal,     graphite,     iron, more... ▸ Words similar to magnetite ▸ Usage examples for magnetite ▸ Idioms related to magnetite ▸ Wikipedia articles (New!) ▸ Popular adjectives describing magnetite ▸ Words that often appear near magnetite ▸ Rhymes of magnetite ▸ Invented words related to magnetite