We found 10 dictionaries that define the word spillways:

General (8 matching dictionaries)

1. spillways: Merriam-Webster
2. spillways: Collins English Dictionary
3. spillways: Vocabulary.com
4. spillways: Wordnik
5. spillways: Wiktionary
6. spillways: Dictionary.com
7. Spillways: Wikipedia, the Free Encyclopedia
8. Spillways: TheFreeDictionary.com

Computing (1 matching dictionary)

9. Spillways: Encyclopedia

Medicine (1 matching dictionary)

10. Spillways: Medical dictionary

(Note: See spillway as well.)

Definitions from Wiktionary (spillway) ▸ noun:  A path designed to take away overflow safely. ▸ Also see spillway Opposite: inlets, intakes, dams, barriers ▸ Words similar to spillways ▸ Usage examples for spillways ▸ Idioms related to spillways ▸ Wikipedia articles (New!) ▸ Popular adjectives describing spillways ▸ Words that often appear near spillways ▸ Rhymes of spillways ▸ Invented words related to spillways