obechi uncommon noun 1. large west African tree having large palmately lobed leaves and axillary cymose panicles of small white flowers and one-winged seeds; yields soft white to pale yellow wood SynonymsobecheareresambaTriplochiton scleroxcylon Related words Broader terms tree Parts Triplochiton WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.