The phonetic process or result of converting a sound into a sibilant (hissing) sound.
From assibilate + -tion suffix (from Latin -tio). This noun describes the actual linguistic phenomenon of sound transformation.
Assibilation is why English 'ti' in 'nation' sounds like 'sh'—it's a real phonetic change happening in real time, and linguists can track exactly how sounds shift across generations of speakers.
Complete word intelligence in one call. Free tier — 50 lookups/day.