In [[astronomy]], a revolution refers to a planetary object completing a full [[orbit]]. Because the word "revolution" comes from the [[Latin]] ''revolutio'', meaning "''turnaround''", it can be seen to make sense in both contexts. | In [[astronomy]], a revolution refers to a planetary object completing a full [[orbit]]. Because the word "revolution" comes from the [[Latin]] ''revolutio'', meaning "''turnaround''", it can be seen to make sense in both contexts. |