An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

1) The act, process, or result of developing. The state of being developed.
2a) Math.: The act or process of → expanding an expression into another of equivalent value or meaning.
2b) The equivalent expression into which another has been developed.

From → develop + -ment suffix forming nouns from verbs.

Govâleš, from govâl, stem of govâlidan, → develop, + -eš verbal noun suffix, → -tion.

Systematic activity combining both basic and applied research, and aimed at discovering solutions to problems or creating new goods and knowledge. (BusinessDictionary.com).

→ research; → development.

Ecology: A development that meets the needs of the present without compromising the ability of future generations to meet their own needs.

→ sustainable; → development.