A processed dinosaur hiss, small dinosaur
Hissing sparking sound of electricity arcing or electrical arc welder
Hissing of steam popping out of the pressure cooker
Buzzing and ticking sound of electrons arcing
Long, low pneumatic air hiss
A processed dinosaur roar with lip flutters and hisses
Steam under pressure as with steam iron, sharp hissing of release
Processed dinosaur snarling and hissing
Wild alligator hissing. Ferocious.
Wild alligator hissing, subtle to ferocious.