sea holm sea·holm uncommon noun 1. European evergreen eryngo with twisted spiny leaves naturalized on United States east coast; roots formerly used as an aphrodisiac Synonymssea hollysea holmsea eryngiumEryngium maritimum Related words Broader terms shrub Parts Eryngium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
