Examples from the Web for allotropic
He was not wrong in thinking these allotropic forms of the same alien thing; and that thing was equality.A Short History of England|G. K. Chesterton
Just let me tell you, to use a very hard word, that we call the diamond an "allotropic" form of carbon.The Story of a Tinder-box|Charles Meymott Tidy
These reactions afford the clearest proof that the silver is in an allotropic form.
Sir: In a recently published lecture, Mr. Meldola seems to call in question the existence of allotropic silver.
Another element occurring in allotropic forms is sulphur, of which many forms have been described.