▪ I. gelation1
(dʒɪˈleɪʃən)
[ad. L. gelātiōn-em, f. gelāre to freeze.]
Solidification by cold, freezing.
| 1854 Mayne Expos. Lex., Gelatio..gelation. 1871 tr. Schellen's Spectr. Anal. lxvi. 369 Complete gelation and torpidity. 1875 Ruskin Deucalion (1879) I. 44, I do not doubt but that wonderful phenomena of congelation, regelation, degelation and gelation pure without preposition, take place whenever a schoolboy makes a snowball. |
▪ II. gelation2
(dʒɛˈleɪʃən)
[f. gel n. + -ation.]
The process of becoming a gel.
| 1915 W. W. Taylor Chem. Colloids 11 There seems no escape from the adoption of the following terms:—gel, to gelate, gelation, sol, to solate, solation. 1950 Thorpe's Dict. Appl. Chem. (ed. 4) X. 56/2 Gelation is not necessarily due to the formation of very large molecules. Ibid., Gelation occurs only when there is the possibility of unlimited growth in three dimensions. 1954 Electronic Engin. XXVI. 141 If gelation takes place before maximum expansion has been reached, the product will be much denser than expected. |