rehydratev.
/ˌriːhʌɪˈdreɪt/, U.S. /riˈhaɪˌdreɪt/ 1. transitive. To add water to (something) again following dehydration; to return to a hydrated state; esp. to restore (dehydrated food) to a palatable state by the addition of water.
ΘΚΠ
the world > matter > liquid > water > put water into [verb (transitive)] > add water to again after dehydration
rehydrate1845
the world > food and drink > food > food manufacture and preparation > preparation for table or cooking > general preparation processes > perform general preparation processes [verb (transitive)] > rehydrate or restore
rehydrate1845
reconstitute1917
restore1942
1845 Chemist 6 161/2 It may be ascertained..that the salt has been entirely decomposed, and that the tungstic acid has not been rehydrated.
1885 Jrnl. Chem. Soc. 47 130 Titanic oxide is extremely difficult to dehydrate, and rehydrates itself with rapidity in contact with moist air.
1935 Science 11 Oct. 356/2 The bath..can be used for washing and rehydrating slides.
1962 F. I. Ordway et al. Basic Astronautics xiii. 521 The water necessary to rehydrate these processed foods can be recovered.
1969 New Scientist 16 Jan. 128/2 The food was shown to be fully dehydrated; and when later rehydrated it tasted excellent.
1995 Minnesota Monthly Apr. 122/2 Get an herbal body wrap to rehydrate that winter-dry skin.
2. intransitive. To take up or absorb water again, esp. after dehydration.
ΘΚΠ
the world > matter > liquid > action or process of absorbing > absorb [verb (intransitive)] > again, esp. after dehydration
rehydrate1890
1890 Contemp. Rev. Dec. 894 The reason that overburnt gypsum will not rehydrate.
1923 J. W. Mellor Comprehensive Treat. Inorg. & Theoret. Chem. III. 763 Crystals of the hemihydrate which practically re-hydrated on cooling.
1946 A. Nelson Princ. Agric. Bot. xii. 296 The creosote bush..simply dries out and tolerates advanced wilting... When the rain comes the tissues re-hydrate and again become functional.
2007 N.Y. Times (National ed.) 20 Sept. e3/4 The vibrating bands..can make you sweat up a storm (causing you to lose water weight, which will return as soon as you rehydrate).
3. transitive. Medicine. To treat (a person or animal) for dehydration, typically with an intravenous or oral solution of water, glucose, and salts.
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1949 Pediatrics 4 97 The patient was rehydrated in 3 days.
1971 Sci. Amer. Aug. 18/3 The patient is first rehydrated by intravenous injection, if necessary, and is then fed the oral solution.
1990 G. G. Liddy Monkey Handlers viii. 125 He's had a night's sleep under mild sedation, and we've been rehydrating him by I.V.
1999 Nursing Times 4 Aug. 16/3 When a baby is brought into hospital in this state, however slowly and carefully it is rehydrated, the brain cells will expand causing fitting and potential brain damage.
Derivatives
ˌrehyˈdratable adj. that may be rehydrated.
ΘΚΠ
the world > food and drink > food > food otherwise characterized > [adjective] > rehydratable
rehydratable1940
the world > matter > liquid > water > [adjective] > able to have water added again
rehydratable1940
1940 U.S. Patent 2,185,591 1/1 The protective agents..may be almost any of the readily rehydratable colloids.
1970 N. Armstrong et al. First on Moon vi. 127 U.S. choice beef was better for rehydratable meat cubes than prime, which had too much fat.
1997 Trail May 83/2 Food is not very palatable or for that matter rehydrateable at altitudes where water boils at well below 100°C.
This entry has been updated (OED Third Edition, December 2009; most recently modified version published online March 2022).
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