We found 23 dictionaries that define the word boundary layer:

General (12 matching dictionaries)

1. boundary layer: Merriam-Webster
2. boundary layer: Oxford Learner's Dictionaries
3. boundary layer: American Heritage Dictionary of the English Language
4. boundary layer: Collins English Dictionary
5. boundary layer: Vocabulary.com
6. boundary layer: Infoplease Dictionary
7. boundary layer: Dictionary.com
8. Boundary layer: Wikipedia, the Free Encyclopedia
9. boundary layer: Rhymezone
10. boundary layer: FreeDictionary.org
11. boundary layer: Mnemonic Dictionary
12. boundary layer: TheFreeDictionary.com

Computing (2 matching dictionaries)

13. Boundary-layer, boundary layer, Boundary layer: Encyclopedia

Medicine (1 matching dictionary)

14. online medical dictionary (No longer online)

Science (4 matching dictionaries)

15. Electrochemistry Dictionary (No longer online)
16. Boundary Layer: Eric Weisstein's World of Physics
17. Boundary Layer: Extragalactic Astronomy
18. Atmospheric Chemistry and Air Quality (No longer online)

Tech (4 matching dictionaries)

19. AUTOMOTIVE TERMS (No longer online)
20. Glossary of Meteorology (No longer online)
21. Lake and Water Word Glossary (No longer online)
22. National Weather Service Glossary (No longer online)

(Note: See boundary_layers as well.)

Definitions from Wikipedia (Boundary layer) ▸ noun:  In physics and fluid mechanics, a boundary layer is the thin layer of fluid in the immediate vicinity of a bounding surface formed by the fluid flowing along the surface. Opposite: free stream, outer flow, bulk flow Phrases: surface boundary layer, atmospheric boundary layer, boundary layer separation, Planetary boundary layer, Boundary layer control, more... ▸ Words similar to boundary layer ▸ Usage examples for boundary layer ▸ Idioms related to boundary layer ▸ Wikipedia articles (New!) ▸ Words that often appear near boundary layer ▸ Rhymes of boundary layer ▸ Invented words related to boundary layer