(ˈ) hī|lēən adjective
Etymology: probably from German Hyläa, region of tropical rain forest in the basin of the Amazon river in So. America (from Greek Hylaia, forested region on what is now the Dnieper river in the Ukraine, from hylaia, feminine of hylaios of the forest, wild, from hylē wood, forest) + English -an
: covered with forest : wooded