資料來源 : Webster's Revised Unabridged Dictionary (1913)

-plastic \-plas"tic\ (-pl[a^]s"t[i^]k). [Gr. ? fit for molding,
   plastic, fr. ? to mold, to form.]
   A combining form signifying developing, forming, growing; as,
   heteroplastic, monoplastic, polyplastic.