We found 9 dictionaries that define the word thoracostraca:

General (8 matching dictionaries)

1. Thoracostraca: Merriam-Webster
2. thoracostraca: Wordnik
3. Thoracostraca, thoracostraca: Dictionary.com
4. Thoracostraca: Online Plain Text English Dictionary
5. thoracostraca: Webster's Revised Unabridged, 1913 Edition
6. Thoracostraca: AllWords.com Multi-Lingual Dictionary
7. thoracostraca: FreeDictionary.org
8. Thoracostraca: TheFreeDictionary.com

Medicine (1 matching dictionary)

9. online medical dictionary (No longer online)

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