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  • English Word Umbellifer Definition A plant producing an umbel or umbels.
  • English Word Umbelliferone Definition A tasteless white crystalline substance, C9H6O3, found in the bark of a certain plant (Daphne Mezereum), and also obtained by the distillation of certain gums from the Umbelliferae, as galbanum, asafetida, etc. It is analogous to coumarin. Called also hydroxy-coumarin.
  • English Word Umbelliferous Definition Producing umbels.
  • English Word Umbelliferous Definition Of or pertaining to a natural order (Umbelliferae) of plants, of which the parsley, carrot, parsnip, and fennel are well-known examples.
  • English Word Umbellularia Definition A genus of deep-sea alcyonaria consisting of a cluster of large flowerlike polyps situated at the summit of a long, slender stem which stands upright in the mud, supported by a bulbous base.
  • English Word Umbellule Definition An umbellet.
  • English Word Umber Definition A brown or reddish pigment used in both oil and water colors, obtained from certain natural clays variously colored by the oxides of iron and manganese. It is commonly heated or burned before being used, and is then called burnt umber; when not heated, it is called raw umber. See Burnt umber, below.
  • English Word Umber Definition To color with umber; to shade or darken; as, to umber over one's face.
  • English Word Umber Definition Of or pertaining to umber; resembling umber; olive-brown; dark brown; dark; dusky.
  • English Word Umber Definition An African wading bird (Scopus umbretta) allied to the storks and herons. It is dull dusky brown, and has a large occipital crest. Called also umbrette, umbre, and umber bird.
  • English Word Umber Definition An umbrere.
  • English Word Umber Definition See Grayling, 1.
  • English Word Umbery Definition Of or pertaining to umber; like umber; as, umbery gold.
  • English Word Umbilic Definition The navel; the center.
  • English Word Umbilic Definition An umbilicus. See Umbilicus, 5 (b).
  • English Word Umbilic Definition See Umbilical, 1.
  • English Word Umbilical Definition Of or pertaining to an umbilicus, or umbilical cord; umbilic.
  • English Word Umbilical Definition Pertaining to the center; central.
  • English Word Umbilicate Definition Alt. of Umbilicated
  • English Word Umbilicated Definition Depressed in the middle, like a navel, as a flower, fruit, or leaf; navel-shaped; having an umbilicus; as, an umbilicated smallpox vesicle.
  • English Word Umbilicated Definition Supported by a stalk at the central point.
  • English Word Umbilication Definition A slight, navel-like depression, or dimpling, of the center of a rounded body; as, the umbilication of a smallpox vesicle; also, the condition of being umbilicated.
  • English Word Umbilicus Definition An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled.
  • English Word Umbilicus Definition A point of a surface at which the curvatures of the normal sections are all equal to each other. A sphere may be osculatory to the surface in every direction at an umbilicus. Called also umbilic.
  • English Word Umbilicus Definition One of foci of an ellipse, or other curve.
  • English Word Umbilicus Definition Either one of the two apertures in the calamus of a feather.
  • English Word Umbilicus Definition The hilum.
  • English Word Umbilicus Definition A depression or opening in the center of the base of many spiral shells.
  • English Word Umbilicus Definition The depression, or mark, in the median line of the abdomen, which indicates the point where the umbilical cord separated from the fetus; the navel.
  • English Word Umble pie Definition A pie made of umbles. See To eat humble pie, under Humble.