Emily Dickinson Lexicon
Definition for SEX-DEC'IM-AL
SEX-AN'GU-LAR-LYSEX-DU-O-DEC'IM-AL
SEX-DEC'IM-AL, a. [L. sex, six, and decem, ten.]
In crystalography, when a prism or the middle part of a crystal has six faces and two summits, and taken together, ten faces, or the reverse.
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