ERGONOMICAL
ergonomical: translation
ergonomics er‧go‧nom‧ics [ˌɜːgəˈnɒmɪks ǁ ˌɜːrgəˈnɑː-] noun [uncountable]
the study of how the design of equipment affects how well people can do their work:
• the ergonomics of computer keyboards
— ergonomic adjective :
• a comfortable, ergonomic design
— ergonomical adjective
— ergonomically adverb :
• The factory is well lit, ergonomically designed and air-conditioned.