<p><strong>Noun</strong></p><ul><li>the state or quality of being external to or outside someone or something; the fact of being outer, outward, or on the surface</li><li>something external; an outward feature, or all outward features considered together</li><li>excessive attention to external or outward features; superficiality</li><li>a side effect of some process or activity, especially a negative effect of an economic activity that is not accounted for in the price of what is produced</li></ul>