Adjective
formable (comparative more formable, superlative most formable)
Able to be formed.
Easily formable associations with regular words would interfere with his results, so he used items that would later be called " nonsense syllables " (also known as the CVC trigram ). Source: Internet
Welding glass is accomplished by heating the glass through the glass transition, turning it into a thick, formable, liquid mass. Source: Internet