n. 1. A low mound or ridge of earth; a knoll. 2. See hammock2. 3. A ridge or hill of ice in an ice field. [Early Modern English hammock, hommock, hummock : hamm-, homm-, humm-, of uncertain meaning (possibly akin to Low German humpel, hümpel, hümmel, hill, hummock, and English hump) + -ock, diminutive suffix (as in HILLOCK).] hummock·y adj. |
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