12-Letter Words Containing: I,S,T,E,R,L,Y

• having become fixed and definite in form

• having both internal structure and external form of a crystal

• convert to another faith or religion

• cause to take on a definite and clear shape

• make free from confusion or ambiguity; make clear

• cause to form crystals or assume crystalline form

• assume crystalline form; become crystallized

• convert to another faith or religion

• in a hysterical manner