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n. pl. di·a·ste·ma·ta (-mə-tə)
A gap or space between two teeth.

[Late Latin diastēma, interval, from Greek, from diistanai, diastē-, to separate; see diastasis.]

di′a·ste·mat′ic (-stə-măt′ĭk) adj.


characterized by diastema
References in periodicals archive ?
The study of these two manuscripts is likely to interest any scholar of paleography, since the oldest manuscript (CT 60, twelfth century) is in adiastematic neumatic notation, while CT 61 (early thirteenth century) makes use of perfectly diastematic neumes.
The manuscripts of this latter period conceal the answer to a much-disputed problem concerning the development of Byzantine music up to Chrysanthos' reform: the ways that neumes denoting melodic formulas have been gradually replaced by their analysis in diastematic neumes, a process known as the stenographic theory.
Of course, such neumatic sources are routinely interpreted by reference to later diastematic sources, but should a similar comparative method be used to interpret the rhythmic patterns of unmeasured sources (trobador or trouvere songs, or the Latin songs of the Carmina Burana), we are told that the later, measured, sources "imposed" rhythms on songs hitherto innocent of such affronts.