We found 4 dictionaries that define the word orexin a:

General (2 matching dictionaries)

1. orexin-A: Oxford Learner's Dictionaries
2. Orexin-A: Wikipedia, the Free Encyclopedia

Medicine (1 matching dictionary)

3. orexin A: Merriam-Webster Medical Dictionary

Science (1 matching dictionary)

4. orexin A: Cytokines & Cells Online Pathfinder Encyclopaedia

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