Meaning of consonant shift

con'sonant shift"

Pronunciation: [key]
— Ling. Ling.
  1. a set of changes that take place in the articulation of one or more consonant phonemes between an earlier and a later stage of a language. Cf. first consonant shift, second consonant shift.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.