hickory pine hic·ko·ry·pine uncommon noun 1. small 2-needled upland pine of the eastern United States (Appalachians) having dark brown flaking bark and thorn-tipped cone scales Synonymstable-mountain pineprickly pinehickory pinePinus pungens Related words Broader terms pine WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.