We found 4 dictionaries that define the word reduction gears:

General (3 matching dictionaries)

1. reduction gears: Merriam-Webster
2. reduction gears: Vocabulary.com
3. reduction gears: TheFreeDictionary.com

Computing (1 matching dictionary)

4. reduction gears: Encyclopedia

(Note: See reduction_gear as well.)

Definitions from WordNet (reduction gear) ▸ noun:  gearing that reduces an input speed to a slower output speed ▸ Also see reduction_gear ▸ Words similar to reduction gears ▸ Usage examples for reduction gears ▸ Idioms related to reduction gears ▸ Wikipedia articles (New!) ▸ Words that often appear near reduction gears ▸ Rhymes of reduction gears ▸ Invented words related to reduction gears