| tuff | <chemical> Same as Tufa. Source: Websters Dictionary (01 Mar 1998) |
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| tuffstone body | Membrane-bound electron-dense granules, measuring about 0.5 um in diameter, found primarily in Schwann cells of patients suffering from metachromatic leukodystrophy; the name alludes to their resemblance to volcanic limestone. (05 Mar 2000) |