We found 16 dictionaries that define the word first derivative:

General (10 matching dictionaries)

1. first derivative: Merriam-Webster
2. first derivative: Collins English Dictionary
3. first derivative: Vocabulary.com
4. first derivative: Infoplease Dictionary
5. first derivative: Dictionary.com
6. First derivative: Wikipedia, the Free Encyclopedia
7. first derivative: Rhymezone
8. first derivative: FreeDictionary.org
9. first derivative: Mnemonic Dictionary
10. first derivative: TheFreeDictionary.com

Business (2 matching dictionaries)

11. first derivative: Legal dictionary
12. first derivative: Financial dictionary

Computing (1 matching dictionary)

13. first derivative: Encyclopedia

Medicine (1 matching dictionary)

14. first derivative: Medical dictionary

Science (2 matching dictionaries)

15. First Derivative: Eric Weisstein's World of Mathematics
16. first derivative: PlanetMath Encyclopedia

(Note: See first_derivatives as well.)

Definitions from WordNet (first derivative) ▸ noun:  the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx ▸ Words similar to first derivative ▸ Usage examples for first derivative ▸ Idioms related to first derivative ▸ Wikipedia articles (New!) ▸ Words that often appear near first derivative ▸ Rhymes of first derivative ▸ Invented words related to first derivative