fossilize Synonyms

fossilise become obdurate fossilate firming densify calloused vitrify toughen thicken temper stiffen solidify fossilify fossilised become unyielding become rigid become unprogressive cease developing turned to stone turn into stone become inflexible make hard Turn to Stone rigidify shrivel petrify ossify callous calcify calcified cake buttress brace bake antiquate anneal ammonite amalgamate casehardening concrete ossifying ossified mineralize lapidify indurate harden freeze fossilized fix congeal