reconstitution

American  

[ree-kon-sti-too-shuhn, -tyoo-] / riˌkɒn stɪˈtu ʃən, -ˈtyu- /

noun

1. the act, process, or result of putting the elements of something back together into a whole; reconstruction.

   Although places and events are concrete, our mental reconstitutions of them are often inaccurate.

   The restorative work aimed at a full reconstitution of the building’s medieval character, including furniture and other objects.

2. the act or process of returning a dehydrated or concentrated food or other substance to its normal liquid state by adding water.

   In the Apollo moon program of the late 1960s, hot water was available for rapid reconstitution of freeze-dried foods by the astronauts.

---

Etymology

Origin of reconstitution

First recorded in 1755–65; 1915–20 reconstitution for def. 2; re- ( def. ) + constitution ( def. )

Example Sentences

In these in vitro reconstitution experiments, they observed that the filaments display dynamic instability.

From Science Daily • Apr. 20, 2026

While the reconstitution of the Nasdaq-100 happens only once a year, changes can happen at other times, such as when a current member transfers to another exchange or reclassifies as a financial company.

From MarketWatch • Dec. 13, 2025

During the 2022 reconstitution, Nasdaq said a record 3.31 billion shares representing $63.8 billion across Nasdaq-listed stocks were traded in 2.04 seconds during the exchange's "Closing Cross."

From Reuters • Jun. 21, 2023

More than half the patients suspected to have this overreaction, known as immune reconstitution inflammatory syndrome, died.

From Science Magazine • Feb. 20, 2023

The first coördination passes into the second, and the second may be viewed as a modification or reconstitution of the first.

From John Dewey's logical theory by Howard, Delton Thomas

Related Words

• overhaul
• restructuring