Definitions for "Tufa"
A soft or porous stone formed by depositions from water, usually calcareous; -- called also calcareous tufa.
A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria.
Calcareous deposits found in eerie rock forms at Mono Lake.
Keywords:  vexilloid, tuuf, helmet, crest, britain
A tuft of hair, feathers or other similar materials used in the same manner as a flag (see also ‘ vexilloid 1)'). Please note that the term is taken from the ancient Roman tufa which is considered to have been a helmet crest, and to have been adopted in Britain as the tuuf.
A bulbous, vertical feature that resembles solidified wax on the side of a candle.