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It seems to me that collateral adjectives generally function identically to the equivalent noun acting as the first part of a compound word. For example, thermal capacity = heat capacity. I think this should be mentioned in the article. Is there a source for it somewhere? Bob A (talk) 20:58, 14 June 2010 (UTC)
That's not true in general, but it happens often enough that I think it's worth mentioning, and I added s.t. Don't know about sourcing it, though. — kwami (talk) 01:37, 23 August 2013 (UTC)