Coleus aromaticus co·leu·sa·romaticus uncommon noun 1. an aromatic fleshy herb of India and Ceylon to South Africa; sometimes placed in genus Plectranthus Synonymscountry borageColeus aromaticusColeus amboinicusPlectranthus amboinicus Related words Broader terms coleus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.