Definition of "unoriented" []

• Not oriented: lacking orientation. (adjective)

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• "Equivalently this is the space of all (unoriented) lines through the origin."
• "I recall just enough group theory from university that I sometimes think of PCs as being like a coset of 2 elements – the +1 version and the -1 version, which thus are an unoriented element."
• "Here am I marching up and down this terrace alone, unoriented."