We found 2 dictionaries that define the word moldboard plows:

General (2 matching dictionaries)

1. moldboard plows: Merriam-Webster
2. moldboard plows: Vocabulary.com

(Note: See moldboard_plow as well.)

Definitions from WordNet (moldboard plow) ▸ noun:  plow that has a moldboard ▸ Also see moldboard_plow ▸ Words similar to moldboard plows ▸ Usage examples for moldboard plows ▸ Idioms related to moldboard plows ▸ Wikipedia articles (New!) ▸ Words that often appear near moldboard plows ▸ Rhymes of moldboard plows ▸ Invented words related to moldboard plows