We found 21 dictionaries that define the word shells:

General (12 matching dictionaries)

1. shells: Merriam-Webster
2. shells: Oxford Learner's Dictionaries
3. shells: Collins English Dictionary
4. shells: Vocabulary.com
5. Shell's, Shells, shell's, shells: Wordnik
6. shells: Cambridge Advanced Learner's Dictionary
7. shells: Wiktionary
8. shells: Dictionary.com
9. shells: Cambridge Essential American English Dictionary
10. Shells (Angel), Shells, The Shells (doo wop band), The Shells: Wikipedia, the Free Encyclopedia
11. Shells: Rhymezone
12. shells: TheFreeDictionary.com

Art (1 matching dictionary)

13. Epicurus.com Spanish Glossary (No longer online)

Business (1 matching dictionary)

14. shells: Legal dictionary

Computing (1 matching dictionary)

15. shells: Encyclopedia

Medicine (1 matching dictionary)

16. shells: Medical dictionary

Miscellaneous (1 matching dictionary)

17. shells: Idioms

Science (1 matching dictionary)

18. shells: UNCChem Glossary

Slang (3 matching dictionaries)

19. shells: Green’s Dictionary of Slang
20. shells: Urban Dictionary
21. Shells: Twists, Slugs and Roscoes: Hardboiled Slang

(Note: See shell as well.)

Definitions from Wiktionary (Shells) ▸ noun:  A surname. Similar: carapace, pod, eggshell, plate, casing, blast, scale, strafe, Racing shell, seashell, more... Opposite: cores, insides, interiors, centers, hearts Types: conch, abalone, scallop, clam, oyster, mussel, nautilus, whelk, more... Phrases: artillery shells, sea shells, oyster shells, electron shells, conch shells, more... Adjectives: empty, few, marine, small, fossil, cylindrical, thin, mortar, inch, sea, explosive ▸ Words similar to shells ▸ Usage examples for shells ▸ Idioms related to shells ▸ Wikipedia articles (New!) ▸ Popular adjectives describing shells ▸ Words that often appear near shells ▸ Rhymes of shells ▸ Invented words related to shells