noun
collation editing; proofreading and annotation
Refers to the scholarly process of comparing texts, correcting errors, and adding explanatory notes, especially for classical or historical works.
この古典の校注には数年かかった。
The collation editing of this classic text took several years.
校注を担当した研究者は、原典の異同を細かく調べた。
The researcher in charge of the proofreading and annotation carefully examined the textual variants.
Compound of 校 (こう, 'to examine, compare') and 注 (ちゅう, 'annotation, notes'). The variant 校註 uses the older form 註 for 'annotation'.