pertaining to or characterized by .
Historical Examples

In the free state carbon occurs in three allotropic forms, two of which are crystalline and one amorphous.
An Elementary Study of Chemistry William McPherson

They have their allotropic forms, but cannot be changed into one another.
The Story of the Earth and Man J. W. Dawson

This was purely formal, in order to register a breach of confidence as an allotropic form of good faith.
When Ghost Meets Ghost William Frend De Morgan

I am a gentleman in allotropic form’; that was as much as I ever heard him say.
Grey Roses Henry Harland

An example of this is seen in the case of carbon in its three allotropic conditions—charcoal, graphite and diamond.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 Various

In short, these elements seem to impede the allotropic change of the iron itself.
Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 7 Various

The elements even have allotropic forms corresponding very closely to those of sulphur.
An Elementary Study of Chemistry William McPherson

Sir: In a recently published lecture, Mr. Meldola seems to call in question the existence of allotropic silver.
Scientific American Supplement, No. 832, December 12, 1891 Various

Like this latter element, it is capable of assuming three allotropic forms—the amorphous, the vitreous, and the crystalline.
Cooley’s Practical Receipts, Volume II Arnold Cooley

Of the many forms of allotropic silver, two of the best marked are the blue and the yellow.
Scientific American Supplement, No. 832, December 12, 1891 Various

allotropic al·lo·trop·ic (āl’ə-trŏp’ĭk)

Relating to allotropism.

Characterizing one who is preoccupied with the reactions of others.


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