cas·tile soap /(ˌ)kæsˈtil-/



 cas·tile soap /(ˌ)kæsˌtɪl-/ 名詞
 橄欖油皂


 Soap n.  A substance which dissolves in water, thus forming a lather, and is used as a cleansing agent. Soap is produced by combining fats or oils with alkalies or alkaline earths, usually by boiling, and consists of salts of sodium, potassium, etc., with the fatty acids (oleic, stearic, palmitic, etc.). See the Note below, and cf. Saponification. By extension, any compound of similar composition or properties, whether used as a cleaning agent or not.
 Note: ☞ In general, soaps are of two classes, hard and soft. Calcium, magnesium, lead, etc., form soaps, but they are insoluble and useless.
    The purifying action of soap depends upon the fact that it is decomposed by a large quantity of water into free alkali and an insoluble acid salt. The first of these takes away the fatty dirt on washing, and the latter forms the soap lather which envelops the greasy matter and thus tends to remove it.   --Roscoe & Schorlemmer.
 Castile soap, a fine-grained hard soap, white or mottled, made of olive oil and soda; -- called also Marseilles soap or Venetian soap.
 Hard soap, any one of a great variety of soaps, of different ingredients and color, which are hard and compact.  All solid soaps are of this class.
 Lead soap, an insoluble, white, pliable soap made by saponifying an oil (olive oil) with lead oxide; -- used externally in medicine.  Called also lead plaster, diachylon, etc.
 Marine soap. See under Marine.
 Pills of soap Med., pills containing soap and opium.
 Potash soap, any soap made with potash, esp. the soft soaps, and a hard soap made from potash and castor oil.
 Pumice soap, any hard soap charged with a gritty powder, as silica, alumina, powdered pumice, etc., which assists mechanically in the removal of dirt.
 Resin soap, a yellow soap containing resin, -- used in bleaching.
 Silicated soap, a cheap soap containing water glass (sodium silicate).
 Soap bark. Bot. See Quillaia bark.
 Soap bubble, a hollow iridescent globe, formed by blowing a film of soap suds from a pipe; figuratively, something attractive, but extremely unsubstantial.
    This soap bubble of the metaphysicians.   --J. C. Shairp.
 -- Soap cerate, a cerate formed of soap, olive oil, white wax, and the subacetate of lead, sometimes used as an application to allay inflammation.
 Soap fat, the refuse fat of kitchens, slaughter houses, etc., used in making soap.
 Soap liniment Med., a liniment containing soap, camphor, and alcohol.
 Soap nut, the hard kernel or seed of the fruit of the soapberry tree, -- used for making beads, buttons, etc.
 Soap plant Bot., one of several plants used in the place of soap, as the Chlorogalum pomeridianum, a California plant, the bulb of which, when stripped of its husk and rubbed on wet clothes, makes a thick lather, and smells not unlike new brown soap. It is called also soap apple, soap bulb, and soap weed.
 Soap tree. Bot. Same as Soapberry tree.
 Soda soap, a soap containing a sodium salt. The soda soaps are all hard soaps.
 Soft soap, a soap of a gray or brownish yellow color, and of a slimy, jellylike consistence, made from potash or the lye from wood ashes. It is strongly alkaline and often contains glycerin, and is used in scouring wood, in cleansing linen, in dyehouses, etc. Figuratively, flattery; wheedling; blarney. [Colloq.]
 Toilet soap, hard soap for the toilet, usually colored and perfumed.


 Ve·ne·tian a.  Of or pertaining to Venice in Italy.
 Venetian blind, a blind for windows, doors, etc., made of thin slats, either fixed at a certain angle in the shutter, or movable, and in the latter case so disposed as to overlap each other when closed, and to show a series of open spaces for the admission of air and light when in other positions.
 Venetian carpet, an inexpensive carpet, used for passages and stairs, having a woolen warp which conceals the weft; the pattern is therefore commonly made up of simple stripes.
 Venetian chalk, a white compact talc or steatite, used for marking on cloth, etc.
 Venetian door Arch., a door having long, narrow windows or panes of glass on the sides.
 Venetian glass, a kind of glass made by the Venetians, for decorative purposes, by the combination of pieces of glass of different colors fused together and wrought into various ornamental patterns.
 Venetian red, a brownish red color, prepared from sulphate of iron; -- called also scarlet ocher.
 Venetian soap. See Castile soap, under Soap.
 Venetian sumac Bot., a South European tree (Rhus Cotinus) which yields the yellow dyewood called fustet; -- also called smoke tree.
 Venetian window Arch., a window consisting of a main window with an arched head, having on each side a long and narrow window with a square head.


 Cas·tile soap  A kind of fine, hard, white or mottled soap, made with olive oil and soda; also, a soap made in imitation of the above-described soap.

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 castile soap
      n : a good hard soap made from olive oil and sodium hydroxide