rehydrationn.
/ˌriːhʌɪˈdreɪʃn/, U.S. /ˌriˌhaɪˈdreɪʃən/ The process of adding or taking up water again, esp. after dehydration; (Medicine) the treatment of a dehydrated patient, typically with an intravenous or oral solution of water, glucose, and salts (frequently attributive).
ΘΚΠ
the world > matter > liquid > water > [noun] > adding again
rehydration1853
the world > matter > liquid > action or process of absorbing > [noun] > again > water
rehydration1923
1853 Pharm. Jrnl. & Trans. 12 140 The process by which these results are obtained, is described in the specification of Mr. Cheverton's patent, obtained in June, 1850, as consisting in the de-hydration and subsequent re-hydration of native bi-hydrated sulphate of lime.
1866 W. Odling Lect. Animal Chem. 85 Reconvertible..by actual or potential rehydration.
1911 Lancet 7 Jan. 14/1 The benefits derived by such persons from a course of spa treatment is largely due to the re-hydration effected by a series of immersions in mineral water baths.
1923 J. W. Mellor Comprehensive Treat. Inorg. & Theoret. Chem. III. 763 Special precautions are needed to remove water rapidly before it cools much below 130°, or rehydration sets in.
1957 Phytopathology 47 426/2 Dried spores usually require a rehydration treatment to give maximum germination on gelatin or agar.
1988 G. Palmer Politics of Breastfeeding iii. 64 An episode of diarrhoea may need only oral rehydration therapy.
1997 J-17 June (verso front cover) (advt.) Hydroplen's unique rehydration system maintains natural moisture balance, ensuring that your skin will always look healthy.
2001 K. Lette Nip 'n' Tuck 5 A Spandex-wearing gym junkie with pores in need of constant rehydration.
This entry has been updated (OED Third Edition, December 2009; most recently modified version published online March 2022).
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n.1853