sterculiaceous, a. [NL. Sterculia, the typical genus, fr. L. Sterculius the deity that presided over manuring, from stercus dung. So called because one of the original species is fetid.].
Of or pertaining to a natural order (Sterculiaceæ) of polypetalous exogenous plants, mostly tropical. The cacao (Theobroma Cacao) is the most useful plant of the order. [1913 Webster]