We found 37 dictionaries that define the word yttrium:

General (20 matching dictionaries)

1. yttrium: Merriam-Webster
2. yttrium: Oxford Learner's Dictionaries
3. yttrium: Collins English Dictionary
4. yttrium: Vocabulary.com
5. Yttrium, yttrium: Wordnik
6. yttrium: Wiktionary
7. yttrium: Webster's New World College Dictionary, 4th Ed.
8. yttrium: The Wordsmyth English Dictionary-Thesaurus
9. yttrium: Infoplease Dictionary
10. yttrium: Dictionary.com
11. yttrium: Online Etymology Dictionary
12. Yttrium: Wikipedia, the Free Encyclopedia
13. Yttrium: Online Plain Text English Dictionary
14. yttrium: Webster's Revised Unabridged, 1913 Edition
15. yttrium: Rhymezone
16. Yttrium: AllWords.com Multi-Lingual Dictionary
17. yttrium: Webster's 1828 Dictionary
18. yttrium: FreeDictionary.org
19. yttrium: Mnemonic Dictionary
20. yttrium: TheFreeDictionary.com

Art (1 matching dictionary)

21. Yttrium: Health & Beauty Glossary

Business (1 matching dictionary)

22. yttrium: Financial dictionary

Computing (1 matching dictionary)

23. yttrium: Encyclopedia

Medicine (8 matching dictionaries)

24. yttrium: Merriam-Webster Medical Dictionary
25. Dorland's Illustrated Medical Dictionary (No longer online)
26. Yttrium: MedTerms.com Medical Dictionary
27. Medical Dictionary (No longer online)
28. online medical dictionary (No longer online)
29. yttrium: Dictionary of Cancer Terms
30. yttrium: Medical dictionary
31. Yttrium: Drug Medical Dictionary

Science (3 matching dictionaries)

32. Yttrium: Extragalactic Astronomy
33. General Chemistry Online (No longer online)
34. Yttrium, yttrium: WebElements Periodic Table of the Elements

Tech (3 matching dictionaries)

35. yttrium: Webster's New World Telecom Dictionary
36. Yttrium: Beauty & Health Glossary
37. Rane Professional Audio Reference (No longer online)

Definitions from Wiktionary (yttrium) ▸ noun:  A silvery metallic chemical element (symbol Y) with an atomic number of 39, mainly found in combination with lanthanide elements in rare-earth minerals. Similar: Y, atomic number 39, ittrium, ytterbium, yttria, thulium, terbium, zirconium, radioyttrium, ittria, more... Types: barium, lanthanum, cerium, praseodymium, neodymium, samarium, europium, gad, more... Phrases: yttrium oxide, yttrium metal, yttrium chloride, yttrium 90, yttrium iron garnet, more... Adjectives: radioactive, pure, metallic, active, precipitate, trivalent, separate, rare, neodymium, hour, old Colors:     silver,     gray,     white,     light gray,     dark gray, more... ▸ Word origin ▸ Words similar to yttrium ▸ Usage examples for yttrium ▸ Idioms related to yttrium ▸ Wikipedia articles (New!) ▸ Popular adjectives describing yttrium ▸ Words that often appear near yttrium ▸ Rhymes of yttrium ▸ Invented words related to yttrium