Definitions of ergonomics on the Web:

• biotechnology: the branch of engineering science in which biological science is used to study the relation between workers and their environments
  wordnetweb.princeton.edu/perl/webwn

• [[Image:Computer Workstation Variables.jpg|thumb|240px|Ergonomics is the science of designing the job, equipment, and workplace to fit the worker. Proper ergonomic design is necessary to prevent repetitive strain injuries, which can develop over time and can lead to long-term disability. ]]
  en.wikipedia.org/wiki/Ergonomics

• The science of the design of equipment, especially so as to reduce operator fatigue, discomfort and injury
  en.wiktionary.org/wiki/ergonomics

• ergonomic - of or relating to ergonomics
  wordnetweb.princeton.edu/perl/webwn

• The study of how workers interact with their work environment. Proper ergonomics means designing objects in the workplace, such as keyboards and chairs, to provide safety and comfort for the worker.
  www.crm.mb.ca/guide/glossary.html

• The study of the relationship between people and their working environment.
  www.enotes.com/nursing-encyclopedia/occupational-therapy

• According to Ergoweb: The science of work. Ergonomics removes barriers to quality, productivity, and safe human performance by fitting products, tasks and environments to people.
  www.ergoweb.com/resources/faq/glossary.cfm

• the science of obtaining a correct match between the human body, work-related tasks, and work tools.
  www.mind.org.my/index.php

• The study of work organization, and the human/machine interface in particular. Not to be confused with mere appearance, ergonomic design is a science devoted to helping the machine operator be more productive by allowing him/her to operate more efficiently, comfortably, and safely.
  www.raymondcorp.com/solutions/glossary.cfm

• A discipline that involves fitting the job to the worker and not the worker to the job. It is the science of adapting workstations, tools, equipment and job practices to be compatible with the individual worker and thus reduce the risk of injury due to risk factors.
  www.workriteergo.com/ergonomics/glossary.asp

• The study or science of how people interact with their work. Event Any logged or recorded action that has a specific date and time assigned to it by either the browser or server. The occurrence of an event can be counted in three ways: Event - Each occurrence of the event is counted. ...
  www.tvb.org/multiplatform/Multiplatform_Glossary.aspx

• is the application of scientific information concerning objects (eg. desk, chair, etc), systems (eg. tasks being completed) and environment (eg. lighting, floor surface, noise, etc).
  www.activemotionphysio.ca/article.php

• Study of body posture and instrument positioning.
  www.motorbike-search-engine.co.uk/motorcycle-glossary-e.php

• The science of designing tools and work processes for the comfort and safety of employees to avoid such hazards as back injuries or muscle, tendon ...
  www.yourpowerwithiam160.com/pages/glossary.htm

• The science of designing machines, tools and computers so that people find them easy and comfortable to use.
  www.infocus.com/Support/Glossary/E.aspx