verb.
Simple past tense and past participle of develop.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
(of real estate) made more useful and profitable as by building or laying out roads
adjective.
(used of societies) having high industrial development
adjective.
being changed over time so as to be e.g. stronger or more complete or more useful
Word Usage
"The threshold amount is based on a definition developed by the Social Security Administration in 1964 and revised in 1969 and 1981 by interagency committees."