We found 9 dictionaries that define the word complex numbers:

General (5 matching dictionaries)

1. complex numbers: Merriam-Webster
2. complex numbers: Collins English Dictionary
3. complex numbers: Vocabulary.com
4. complex numbers: Wiktionary
5. Complex numbers: Wikipedia, the Free Encyclopedia

Computing (1 matching dictionary)

6. Complex numbers: Encyclopedia

Science (1 matching dictionary)

7. A Glossary of Mathematical Terms (No longer online)

Slang (1 matching dictionary)

8. Complex numbers: Urban Dictionary

Tech (1 matching dictionary)

9. complex numbers: Electronics

(Note: See complex_number as well.)

Definitions from Wiktionary (complex number) ▸ noun:  (complex analysis) A number of the form a + bi, where a and b are real numbers and i denotes the imaginary unit. ▸ Also see complex_number ▸ Words similar to complex numbers ▸ Usage examples for complex numbers ▸ Idioms related to complex numbers ▸ Wikipedia articles (New!) ▸ Words that often appear near complex numbers ▸ Rhymes of complex numbers ▸ Invented words related to complex numbers