a. Bot. [f. mod.L. Tūberāceī (masc. pl.), -āceæ (fem. pl.), F. Tūber: see prec. 1 b and -ACEOUS.] Belonging to the order Tuberaceæ or Tuberacei of discomycetous fungi, typified by the genus Tuber.

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1909.  in Cent. Dict. Suppl.

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