jumby bead jum·by·bead uncommon noun 1. West Indian tree similar to Ormosia monosperma but larger and having smaller leaflets and smaller seeds Synonymsjumby beadjumbie beadOrmosia coarctata Related words Broader terms necklace tree Parts Ormosia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.