We found 17 dictionaries that define the word contagiousness:

General (12 matching dictionaries)

1. contagiousness: Merriam-Webster
2. contagiousness: Oxford Learner's Dictionaries
3. contagiousness: Collins English Dictionary
4. contagiousness: Wordnik
5. contagiousness: Wiktionary
6. Contagiousness, contagiousness: Dictionary.com
7. Contagiousness: Online Plain Text English Dictionary
8. contagiousness: Webster's Revised Unabridged, 1913 Edition
9. Contagiousness: AllWords.com Multi-Lingual Dictionary
10. contagiousness: Webster's 1828 Dictionary
11. contagiousness: FreeDictionary.org
12. Contagiousness: TheFreeDictionary.com

Business (1 matching dictionary)

13. contagiousness: Legal dictionary

Computing (1 matching dictionary)

14. contagiousness: Encyclopedia

Medicine (3 matching dictionaries)

15. contagiousness: Merriam-Webster Medical Dictionary
16. online medical dictionary (No longer online)
17. contagiousness: Medical dictionary

(Note: See contagious as well.)

Definitions from Wiktionary (contagiousness) ▸ noun:  The state or condition of being contagious. Similar: infectiousness, communicableness, transmissibility, noncontagiousness, contactiveness, communicativeness, contiguousness, contactability, transmissiveness, infectiveness, more... Opposite: non-contagiousness, immunity, resistance Adjectives: non, extreme, low, high, apparent, great, possible, slight, direct, certain, irresistible ▸ Words similar to contagiousness ▸ Usage examples for contagiousness ▸ Idioms related to contagiousness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing contagiousness ▸ Words that often appear near contagiousness ▸ Rhymes of contagiousness ▸ Invented words related to contagiousness