Lu·te·ic a. Chem. (a) Pertaining to, or derived from, weld (Reseda luteola). (b) Pertaining to, or designating, an acid resembling luteolin, but obtained from the flowers of Euphorbia cyparissias.
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 Lu·te·o·lin n.  Chem. A yellow dyestuff obtained from the foliage of the dyer's broom (Reseda luteola).
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 Weld n.
 1. Bot. An herb (Reseda luteola) related to mignonette, growing in Europe, and to some extent in America; dyer's broom; dyer's rocket; dyer's weed; wild woad. It is used by dyers to give a yellow color.  [Written also woald, wold, and would.]
 2. Coloring matter or dye extracted from this plant.
 Woad n.  [Written also wad, and wade.]
 1. Bot. An herbaceous cruciferous plant (Isatis tinctoria) of the family Cruciferae (syn. Brassicaceae). It was formerly cultivated for the blue coloring matter derived from its leaves.  See isatin.
 2. A blue dyestuff, or coloring matter, consisting of the powdered and fermented leaves of the Isatis tinctoria. It is now superseded by indigo, but is somewhat used with indigo as a ferment in dyeing.
    Their bodies . . . painted with woad in sundry figures.   --Milton.
 Wild woad Bot., the weld (Reseda luteola).  See Weld.
 Woad mill, a mill grinding and preparing woad.
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 Broom n.
 1. Bot. A plant having twigs suitable for making brooms to sweep with when bound together; esp., the Cytisus scoparius of Western Europe, which is a low shrub with long, straight, green, angular branches, minute leaves, and large yellow flowers.
    No gypsy cowered o'er fires of furze and broom.   --Wordsworth.
 2. An implement for sweeping floors, etc., commonly made of the panicles or tops of broom corn, bound together or attached to a long wooden handle; -- so called because originally made of the twigs of the broom.
 Butcher's broom, a plant (Ruscus aculeatus) of the Smilax family, used by butchers for brooms to sweep their blocks; -- called also knee holly. See Cladophyll.
 Dyer's broom, a species of mignonette (Reseda luteola), used for dyeing yellow; dyer's weed; dyer's rocket.
 Spanish broom. See under Spanish.
 Reseda luteola
      n : European mignonette cultivated as a source of yellow dye;
          naturalized in North America [syn: dyer's rocket, dyer's
          mignonette, weld]