balsam of tolu bal·sa·mof·tolu uncommon noun 1. aromatic yellowish brown balsam from the tolu balsam tree used especially in cough syrups Synonymstolubalsam of tolutolu balsam Related words Broader terms balsam Narrower terms balsam of Peru Parts tolu tree WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
