We found 9 dictionaries that define the word puff adders:

General (6 matching dictionaries)

1. puff adders: Merriam-Webster
2. puff adders: Collins English Dictionary
3. puff adders: Vocabulary.com
4. puff adders: Cambridge Advanced Learner's Dictionary
5. puff adders: Wiktionary
6. Puff adders: TheFreeDictionary.com

Computing (1 matching dictionary)

7. Puff-adders, Puff adders: Encyclopedia

Medicine (2 matching dictionaries)

8. puff adders: Merriam-Webster Medical Dictionary
9. Puff-adders, Puff adders: Medical dictionary

(Note: See puff_adder as well.)

Definitions from Wiktionary (Puff adder) ▸ noun:  Alternative form of puffadder [Any viper or adder in genus Bitis,] ▸ Also see puff_adder ▸ Words similar to puff adders ▸ Usage examples for puff adders ▸ Idioms related to puff adders ▸ Wikipedia articles (New!) ▸ Words that often appear near puff adders ▸ Rhymes of puff adders ▸ Invented words related to puff adders