We found 7 dictionaries that define the word screw propellers:

General (4 matching dictionaries)

1. screw propellers: Merriam-Webster
2. screw propellers: Collins English Dictionary
3. screw propellers: Vocabulary.com
4. screw propellers: TheFreeDictionary.com

Computing (1 matching dictionary)

5. screw propellers: Encyclopedia

Medicine (1 matching dictionary)

6. screw propellers: Medical dictionary

Miscellaneous (1 matching dictionary)

7. screw propellers: Idioms

(Note: See screw_propeller as well.)

Definitions from WordNet (screw propeller) ▸ noun:  a propeller with several angled blades that rotates to push against water or air ▸ Also see screw_propeller ▸ Words similar to screw propellers ▸ Usage examples for screw propellers ▸ Idioms related to screw propellers ▸ Wikipedia articles (New!) ▸ Words that often appear near screw propellers ▸ Rhymes of screw propellers ▸ Invented words related to screw propellers