Wiktionary
gill-over-the-ground
n. ground ivy
WordNet
gill-over-the-ground
n. trailing European aromatic plant of the mint family having rounded leaves and small purplish flowers often grown in hanging baskets; naturalized in North America; sometimes placed in genus Nepeta [syn: ground ivy, alehoof, field balm, runaway robin, Glechoma hederaceae, Nepeta hederaceae]