Wiki the selected word without losing tab context. Select the word + Alt key to open the wiki article for the same.
While browsing if you want to look up any term on wikipedia, there is no need of opening a new tab. With Wiki Lookup, you can directly fetch the article for the selected text in a slide-in without losing the context. Just select the word while pressing Alt key. Selection works both by double clicking any word, or highlighting it by mouse.
Wikipedia is a trademark of the Wikimedia Foundation. Wikipedia Search is open-source under the GPLv3 license on GitHub (see website link).