We found one dictionary that defines the word circle of probable error:

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1. circle of probable error: Encyclopedia

▸ Words similar to circle of probable error ▸ Usage examples for circle of probable error ▸ Idioms related to circle of probable error ▸ Wikipedia articles (New!) ▸ Words that often appear near circle of probable error ▸ Rhymes of circle of probable error ▸ Invented words related to circle of probable error