ERGO

[adverb] [not gradable] [formal] - thereforeCars cause pollution, ergo we must find other methods of transport. ergonomics [noun] [U] - the scientific study of people and their working conditions, esp. done in order to improve effectivenessA specialist in ergonomics will work with the team designing the production line in our new factory.The ergonomics (= design and comfort) of the new office furniture have reduced eyestrain and back problems among the computer users.