Definition of allotrope in English:

allotrope

Syllabification: al·lo·trope
Pronunciation: /ˈaləˌtrōp
 
/

noun

Chemistry
  • Each of two or more different physical forms in which an element can exist. Graphite, charcoal, and diamond are all allotropes of carbon.
    More example sentences
    • Two allotropes of the element exist, accounting for the slight variation in densities.
    • Each of these allotropes of phosphorous also has its own subset of forms.
    • A third allotrope occurs as an amorphous brown powder with a density of 2.350 grams per cubic centimeter.

Origin

late 19th century: back-formation from allotropy.

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Pronunciation: ˌkələrəˈto͝orə
noun
elaborate ornamentation of a vocal melody