retrofit

[ verb re-troh-fit, re-troh-fit; noun adjective re-troh-fit ]

verb (used with object)

, ret·ro·fit·ted or ret·ro·fit, ret·ro·fit·ting.

1. to modify equipment (in airplanes, automobiles, a factory, etc.) that is already in service using parts developed or made available after the time of original manufacture.
2. to install, fit, or adapt (a device or system) for use with something older:

   to retrofit solar heating to a poorly insulated house.

verb (used without object)

, ret·ro·fit·ted or ret·ro·fit, ret·ro·fit·ting.

1. (of new or modified parts, equipment, etc.) to fit into or onto existing equipment.
2. to replace existing parts, equipment, etc., with updated parts or systems.

noun

1. something that has been retrofitted.
2. an instance of updating, enlarging, etc., with new or modified equipment:

   A retrofit could save thousands of dollars.

adjective

1. being or characterized by a retrofit:

   retrofit units.

retrofit

/ ˈrɛtrəʊˌfɪt /

verb

1. tr to equip (a vehicle, piece of equipment, etc) with new parts, safety devices, etc, after manufacture

Other Words From

• retro·fitta·ble adjective

Word History and Origins

Origin of retrofit¹

retro- + fit ¹

Example Sentences

Croeser said current ways of designing or retrofitting streets did not support healthy canopy growth as planning prioritised infrastructure such as cabling and pipelines over tree growth.

From Science Daily

The dam is now undergoing a retrofit that will raise its crest by 10 feet and fortify the dam for earthquake safety.

From Los Angeles Times

Around 29 million British homes require retrofitting by 2050, according to the UK Green Building Council, an industry body.

From BBC

The company says existing diesel-electric trains could also be retrofitted with batteries to save money.

From BBC

Funds earmarked for seismic retrofits and other renovations of old buildings will be included in the payment for the Gas Company Tower.

From Los Angeles Times

Related Words

• backfit