אָלוּם, (אלם; √אל, cmp. חלם, חלב &c.) a mucilaginous plant (cmp. Lat. Alum), prob. Silphium, a kind of Laserpitium or Asafœtida. T’bul Yom I, 5 (Var. in Ar. אילום, הלום). Cmp. אֱלָל.