molucca balm mo·luc·ca·balm uncommon noun 1. aromatic annual with a tall stems of small whitish flowers enclosed in a greatly enlarged saucer-shaped or bell-shaped calyx Synonymsmolucca balmbells of IrelandMolucella laevis Related words Broader terms herb Parts Molucella WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.