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silk a fine, soft, shiny fiber produced by certain insects, esp. by the silkworm in spinning a cocoon. [5 definitions]
silk cotton a silky fiber covering the seeds of certain tropical trees such as the silk-cotton, used as a soft stuffing material.
silken made of or similar to silk in appearance or texture. [2 definitions]
silk hat a man's formal black top hat covered with a silken material.
Silk Road a name given to the ancient trade routes between China and southern Europe, through southern Asia.
silkscreen a method of printmaking employing a framed screen of silk or other fine fabric, on which a stencil design of impermeable film is impressed, and through which ink is pressed, through the pores not blocked by the design, onto a flat printing surface; serigraphy. [4 definitions]
silk-stocking elegantly or luxuriously dressed. [3 definitions]
silkworm the larva of an Asian moth that spins pure and commercially valued silk to form its cocoon, or any of various other moth larvae that spin cocoons of similar material.
silky of or like silk; smooth, delicate, or shimmering. [2 definitions]
sill a horizontal strip or block serving as the foundation for a window or door frame. [2 definitions]
sillabub variant of syllabub.
silly lacking good sense; foolish. [3 definitions]
silo a high, usu. cylindrical structure used to store fodder. [3 definitions]
silt fine sediment deposited by water, as of earth, clay, or sand. [3 definitions]
Silurian of, relating to, or designating the geological period between the Ordovician and Devonian of the Paleozoic Era, from approximately 440 million to 400 million years ago, when coral reefs began forming and land plants and air-breathing animals appeared. [2 definitions]
silva the trees or forests of a designated area. [2 definitions]
silver a chemical element that has forty-seven protons in each nucleus and that occurs in pure form as a white, ductile, highly lustrous and reflective metal solid, used esp. in making jewelry, coins, bullion, table utensils, and the like. (symbol: Ag) [12 definitions]
silver bromide a yellowish compound that turns black on exposure to light and is the main component of photographic emulsions.
silver certificate formerly, a paper bill issued by the U.S. government, backed by a silver deposit.
silver chloride a white crystalline compound that darkens on exposure to light, used in photography and the like.
silverfish a silver-colored, wingless household insect that feeds on starchy materials such as book bindings, wallpaper, and starched clothing. [2 definitions]