Lewis & Short

plŏcē, ēs, f., = πλοκή.

  1. I. In rhetoric, a repeating of the same word with a different meaning, Mart. Cap. 5, § 532; Jul. Rufin. p. 236 Ruhnk. (ad Quint. 9, 3, 41, written as Greek).
  2. II. In music, a combining of different tones together, Mart. Cap. 9, §§ 936, 958.