[cin.der] n [ME sinder, fr. OE; akin to OHG sintar dross, slag, Serbo-Croatian sedra calcium carbonate] (bef. 12c) 1: the slag from a metal furnace: dross
2. a pl: ashes b: a fragment of ash 3 a: a partly burned combustible in which fire is extinct b: a hot coal without flame c: a partly burned coal capable of further burning without flame
4: a fragment of lava from an erupting volcano -- cin.dery adj