scrip·to·ri·um (skrĭp-tôr'ē-əm, -tōr'-) n.
pl.scrip·to·ri·ums or scrip·to·ri·a (-tôr'ē-ə, -tōr'-) A room in a monastery set aside for the copying, writing, or illuminating of manuscripts and records.
[Medieval Latin scrīptōrium, from Latin scrīptus, past participle of scrībere, to write; see skrībh- in Indo-European roots.]