nucleator
(ˈnjuːklɪeɪtə(r))
[f. nucleate v. + -or.]
A substance which provides nuclei.
| 1903 Nature 3 Dec. 103/1 Phosphorus as a nucleator suddenly bursts forth into maximum activity at about 13°. 1961 New Scientist 28 Sept. 813/1 Steroids can act as effective ice nucleators. 1965 Ibid. 4 Nov. 341/1 Glass-crystalline materials that are made from special glassy compositions containing crystal nucleators. |