We found one dictionary that defines the word grass-fed beef:

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1. Grass-fed beef: Wikipedia, the Free Encyclopedia

▸ Words similar to grass-fed beef ▸ Usage examples for grass-fed beef ▸ Idioms related to grass-fed beef ▸ Wikipedia articles (New!) ▸ Words that often appear near grass-fed beef ▸ Rhymes of grass-fed beef ▸ Invented words related to grass-fed beef