(nū'klē-ō-sī'dās-ĕz), Enzymes (particularly EC subgroup 3.2.2) that catalyze the hydrolysis or phosphorolysis of nucleosides, releasing the purine or pyrimidine base.
nu·cle·o·si·das·es
(nū'klē-ō-sī'dās-ĕz) Enzymes that catalyze the hydrolysis or phosphorolysis of nucleosides, releasing the purine or pyrimidine base.