er·go·nom·ics 
(ûr′gə-nŏmĭks)
(ûr′gə-nŏmĭks)n.
1. (used with a sing. verb) The applied science of equipment design, as for the workplace, intended to maximize productivity by reducing operator fatigue and discomfort. Also called biotechnology, human engineering, human factors engineering.
2. (used with a pl. verb) Design factors, as for the workplace, intended to maximize productivity by minimizing operator fatigue and discomfort: The ergonomics of the new office were felt to be optimal.
[Greek ergon, work; see werg- in the Appendix of Indo-European roots + (ECO)NOMICS.]
er′go·nomic, er′go·no·metric (-nə-mĕtrĭk) adj.
er′go·nomi·cal·ly adv.
er·gono·mist (ûr-gŏnə-mĭst) n.