n. An epiphytic climbing plant of the genus Hedera (H. Helix), natural order Araliaceæ, and the type of the series Hedereæ.n. Ground-pine: chiefly in the compound herb-ivy.n. In Australia, the cultivated varieties of Pelargonium peltatum, commonly known as ivy-leaved geraniums, which are there trained over fences and walls, sometimes to a height of 20 or 30 feet, supplanting the English or common ivy in this use. See ivy-leaved geranium.n. The Macquarie Harbor grape, Calacinum adpressum.n. The naturalized Cape or German ivy, Senecio mikanioides. See Senecio, 1.To cover with ivy.