We found 18 dictionaries that define the word conjoined twins:

General (8 matching dictionaries)

1. conjoined twins: Collins English Dictionary
2. conjoined twins: Vocabulary.com
3. conjoined twins: Cambridge Advanced Learner's Dictionary
4. conjoined twins: Wiktionary
5. conjoined twins: Dictionary.com
6. Conjoined Twins, Conjoined twins: Wikipedia, the Free Encyclopedia
7. conjoined twins: TheFreeDictionary.com
8. conjoined twins: Longman Dictionary of Contemporary English

Business (1 matching dictionary)

9. conjoined twins: Legal dictionary

Computing (1 matching dictionary)

10. conjoined twins: Encyclopedia

Medicine (7 matching dictionaries)

11. conjoined twins: Merriam-Webster Medical Dictionary
12. Dorland's Illustrated Medical Dictionary (No longer online)
13. Conjoined twins: MedTerms.com Medical Dictionary
14. Specific Diseases/Disorders (No longer online)
15. A-Z Family health glossary (No longer online)
16. conjoined twins: Medical dictionary
17. Conjoined twins: Drug Medical Dictionary

Slang (1 matching dictionary)

18. Conjoined twins: Urban Dictionary

(Note: See conjoined_twin as well.)

Definitions from Wikipedia (Conjoined twins) ▸ noun:  Conjoined twins, popularly referred to as Siamese twins, are twins joined in utero. Opposite: separate twins, unconnected twins, non-identical twins ▸ Words similar to conjoined twins ▸ Usage examples for conjoined twins ▸ Idioms related to conjoined twins ▸ Wikipedia articles (New!) ▸ Words that often appear near conjoined twins ▸ Rhymes of conjoined twins ▸ Invented words related to conjoined twins