Word Study
allotropy
CIDE DICTIONARY
allotropy, n. [Gr. other + direction, way, to turn: cf. F. allotropie.].
The property of existing in two or more conditions which are distinct in their physical or chemical relations. [1913 Webster]
" Thus, carbon occurs crystallized in octahedrons and other related forms, in a state of extreme hardness, in the diamond; it occurs in hexagonal forms, and of little hardness, in black lead; and again occurs in a third form, with entire softness, in lampblack and charcoal. In some cases, one of these is peculiarly an active state, and the other a passive one. Thus, ozone is an active state of oxygen, and is distinct from ordinary oxygen, which is the element in its passive state." [1913 Webster]
OXFORD DICTIONARY
allotropy, n. the existence of two or more different physical forms of a chemical element.
Derivative
allotropic adj. allotropical adj.
Etymology
Gk allotropos of another form f. allos different + tropos manner f. trepo to turn
THESAURUS
allotropy
Proteus, allotropism, diversification, diversity, her infinite variety, heterogeneity, heteromorphism, manifoldness, multifariousness, multiplicity, nonuniformity, omnifariousness, omniformity, polymorphism, shapeshifter, variation, variegation, varietyFor further exploring for "allotropy" in Webster Dictionary Online