1. Sinuous, thin sheet (or sheets) of dripstone formed on the roof or walls of a cave or behind a waterfall [20]. 2. A wavy or folded sheet of flowstone hanging from the roof or projecting from the wall of a cave; often translucent and resonant [10]. See also bacon; blanket; drapery. Related to helictite and speleothem. Synonyms: (French.) draperie stalagmitique; (German.) Sinterfahne; (Greek.) parapetasma stalaktitikon; (Italian.) cortina stalattitica; (Russian.) zanavesj; (Spanish.) bandera, cortina; (Turkish.) perde; (Yugoslavian.) sigasta zavjesa, sigasta zavesa.