D defs.my
Entry 2 senses Webster, 1913

Grammarian

/grə-mârʹē-ən/ · Gram·ma·ri·an · IPA /ɡɹəˈmɛəɹɪən/
01 n. One versed in grammar, or the construction of languages; a philologist.
  1. 1.
    One versed in grammar, or the construction of languages; a philologist.
  2. 2.
    One who writes on, or teaches, grammar.