We found 22 dictionaries that define the word left-handedness:

General (18 matching dictionaries)

1. left-handedness: Merriam-Webster
2. left-handedness: Oxford Learner's Dictionaries
3. left-handedness, left-handedness: Collins English Dictionary
4. left-handedness: Vocabulary.com
5. left-handedness: Wordnik
6. left-handedness: Cambridge Advanced Learner's Dictionary
7. left-handedness: Wiktionary
8. left-handedness: Dictionary.com
9. Left-handedness: Wikipedia, the Free Encyclopedia
10. Left-handedness: Online Plain Text English Dictionary
11. left-handedness: Rhymezone
12. Left-handedness: AllWords.com Multi-Lingual Dictionary
13. left-handedness: Webster's 1828 Dictionary
14. left-handedness: FreeDictionary.org
15. left-handedness: Mnemonic Dictionary
16. Left-handedness: TheFreeDictionary.com

Computing (1 matching dictionary)

17. left-handedness: Encyclopedia

Medicine (2 matching dictionaries)

18. left-handedness: Merriam-Webster Medical Dictionary
19. left-handedness: Medical dictionary

Science (1 matching dictionary)

20. A Glossary of Mathematical Terms (No longer online)

(Note: See left-handed as well.)

Definitions from Wiktionary (left-handedness) ▸ noun:  The state of being left-handed. Similar: sinistrality, right-handedness, single-handedness, leftness, one-handedness, lighthandedness, cross-handedness, unevenhandedness, ham-handedness, unidexterity, more... Opposite: right-handedness, dexterity, ambidexterity ▸ Words similar to left-handedness ▸ Usage examples for left-handedness ▸ Idioms related to left-handedness ▸ Wikipedia articles (New!) ▸ Popular adjectives describing left-handedness ▸ Words that often appear near left-handedness ▸ Rhymes of left-handedness ▸ Invented words related to left-handedness