We found one dictionary that defines the word propeller planes:

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1. propeller planes: Vocabulary.com

(Note: See propeller_plane as well.)

Definitions from WordNet (propeller plane) ▸ noun:  an airplane that is driven by a propeller ▸ Also see propeller_plane Opposite: jet planes, turbojets, airliners ▸ Words similar to propeller planes ▸ Usage examples for propeller planes ▸ Idioms related to propeller planes ▸ Wikipedia articles (New!) ▸ Words that often appear near propeller planes ▸ Rhymes of propeller planes ▸ Invented words related to propeller planes