How do the British pronounce cacophony?

What does cacophony mean in English?

1 : harsh or jarring sound : dissonance sense 2 specifically : harshness in the sound of words or phrases.

How do you pronounce Cacophonic?

What word takes 3 hours to say?

METHIONYLTHREONYLTHREONYGLUTAMINYLARGINYL …

All told, the full chemical name for the human protein titin is 189,819 letters, and takes about three-and-a-half hours to pronounce.