(dĭd`ĭməs kălsĕn`tərəs), fl. 1st cent. B.C., Hellenistic Greek grammarian and expositor. Famous for his prodigious literary output, he supposedly produced over 3,500 works. He collated much of the work of the Alexandrian critics, and though only fragments of his own work are extant, he is probably the source of many surviving classical commentaries.
The word explanations in Clement match those in Porphyry closely, but Clement's text has a richness that Porphyry's has lost to the excerptor and that is evidently due to Clement's source, the grammarian Didymus Chalcenterus, whom he names at 357, 8 and refers back to with [Greek text Omitted] at 357, 12.