Definitions for: Assibilation

[n] pronunciation with a sibilant (hissing or whistling) sound
[n] the development of a consonant phoneme into a sibilant

Webster (1913) Definition: As*sib`i*la"tion, n.
Change of a non-sibilant letter to a sibilant, as of -tion to
-shun, duke to ditch.

Synonyms: sibilation

See Also: development, evolution, pronunciation