half-free morel halff·ree·mo·rel uncommon noun 1. a morel with the ridged and pitted fertile portion attached to the stipe for about half its length SynonymsMorchella semiliberahalf-free morelcow's head Related words Broader terms morel Parts Morchellaceae WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.