D defs.my
Entry 1 sense Webster, 1913

Annotation

/ănˌ-ət-āsh'-ən/ · An·no·ta·tion · IPA /ˌænəˈteɪʃən/
01 n. A note, added by way of comment, or explanation; -- usually in the plural; as, annotations on ancient authors, or on a word or a passage.
  1. 1.
    A note, added by way of comment, or explanation; -- usually in the plural; as, annotations on ancient authors, or on a word or a passage.