Tayassu tajacu tayas·su·ta·jacu uncommon noun 1. dark gray peccary with an indistinct white collar; of semi desert areas of Mexico and southwestern United States Synonymscollared peccaryjavelinaTayassu angulatusTayassu tajacuPeccari angulatus Related words Broader terms peccary WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.