13-Letter Words Containing: I,S,T,I,L,S,_

• any of various mostly tropical insects having long twiglike bodies

• the process of fossilizing a plant or animal that existed in some earlier age; the process of being turned to stone

• becoming inflexible or out of date

• The quality of being exclusive.

• give a spiritual meaning to; read in a spiritual sense

• elevate or idealize, in allusion to Christ's transfiguration

• purify from the corrupting influences of the world

• inflammation of the gall bladder

• one who studies the nature and effects of poisons and their treatment