Definition of "consonance"

consonance

noun
countable and uncountable, plural consonances
1. (prosody) The repetition of consonant sounds, but not vowels as in assonance.
2. (chiefly music) Harmony; agreement; lack of discordance.
  Quotations
  Like a musical string, the optic nerve responds to the waves with which it is in consonance, while it refuses to be excited by others of almost infinitely greater energy, whose period of recurrence are not in unison with its own.
  1865, John Tyndall, On Radiation: The "Rede" Lecture, Delivered in the Senate-house Before the University of Cambridge on Tuesday, May 16, 1865, page 33