First Viscount Haldane of Cloan first·vis·count·haldaneofcloan uncommon noun 1. Scottish statesman and brother of Elizabeth and John Haldane (1856-1928) SynonymsHaldaneRichard HaldaneRichard Burdon HaldaneFirst Viscount Haldane of Cloan Related words Broader terms statesman WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.